Hi Khaiwong,

Really, just a bunch of initialization stuff I pull out of the opportunity id that's pased to the page:

  public void getParameters() {        
         internalTest = false;    //DEBUG
         
         Opportunity_id  = ApexPages.currentPage().getParameters().get('Id');
         System.debug('Opportunity_id: ' + Opportunity_id  );
         strListingId= ApexPages.currentPage().getParameters().get('ListingId');
         strCID = ApexPages.currentPage().getParameters().get('customerId');
         strPrimryCatDesc = ApexPages.currentPage().getParameters().get('PrimaryCatDesc');                 
         
         strImageURL = 'HTTPS://' + ApexPages.currentPage().getHeaders().get('Host');
         strImageURL = strImageURL.replace('visual', 'content');   // problem with VF vs. Live
         
         strImageURL  += '/servlet/servlet.FileDownload?file=';
         strAdImageURL = strImageURL;   // Ad Image
         strProfileImageURL = strImageURL;   // ... Image

         theNetworkSuppression = 'Y';
         theAddressSuppression = 'Y';
         theMeterType = '1';

         if(bIsTest)
             strJSON = '{"status":"SUCCESS","primaryTags":[{"id":3748,"value":"Real Estate Sales & Services"},{"id":3849,"value":"Shopping"},{"id":4334,"value":"Wholesalers"}],"messages":[]}';
         else
             strJSON = EncodingUtil.urlDecode(ApexPages.currentPage().getParameters().get('JSON'), 'UTF-8');
         
         System.debug('JSON PASSED: ' + strJSON);
         System.debug('Opportunity ID: ' + Opportunity_id);

         // TODO: -- FIRST:  Get All the required Opportunity Info
         // Problems:   Pricebook entries???
         //             Campaign ID???
         //             Contract Notes???

         rs_oppy = [Select ...
                     Sponsored_Ad1__c, Sponsored_Ad2__c

                  FROM Opportunity
                  WHERE Id = :Opportunity_id
                  LIMIT 1];


             theAOpportunity = rs_oppy[0];

             strRepId = theAOpportunity.Owner.Account_Rep_ID__c;
             strRepName = theAOpportunity.Account.Owner.FirstName + ' ' + theAOpportunity.Account.Owner.LastName;

             Id AttParent = theAOpportunity.Id;
             // NOW GET Logo ATTACHMENT if any....
             System.debug('Attachment Parent: ' + AttParent);

             att = [SELECT Id ...
                 AND Description = 'Logo'
                 LIMIT 1];

             adAtt = [SELECT Id,...
                 WHERE ParentId = :Opportunity_id
                 AND Description = 'Advertisement'
                 LIMIT 1];

             profileAtt = [SELECT Id, ...
                 WHERE ParentId = :Opportunity_id
                 AND Description = 'Profile'
                 LIMIT 1];

         // NOW GET JSON INFO
         ListingId theListing = (ListingId ) JSON.deserialize(strJSON, ListingId.class);
         if(theListing != null) {
             if(theListing.activeBillingAccounts != null) {
                 for(jsonAccounts  b :theListing.activeBillingAccounts) {
                     jsonAccounts xListing = new jsonAccounts();

                     xListing.id = b.id;
                     xListing.value = b.value;
                     cloneListing.add(xListing);
                     }
             
          }
         else {   // look for it on the BillingAccts param
              //{"jsonAccounts":[{"value":"Visa-181","id":"7252"}]}
              String strPmt_ids  = ApexPages.currentPage().getParameters().get('BillingAccts');
              strPmt_ids = '{"activeBillingAccounts": ' + strPmt_ids + '}';
                  accountList yyListing = new accountList();
                
                  yyListing = (accountList) JSON.deserialize(strPmt_ids, accountList.class);            
                  
                  if(yyListing != null) {
                   //System.debug('yyListing SIZE: ' + yyListing.activeBillingAccounts.size());
                   for(jsonAccounts  b :yyListing.activeBillingAccounts) {
                     jsonAccounts xListing = new jsonAccounts();
                     
                     xListing.id = b.id;
                     xListing.value = b.value;
                     cloneListing.add(xListing);
                     }
                   }
                  theMOPAccount =  yyListing.activeBillingAccounts[0];  
                  ///strMOPId = theMOPAccount.Id;
                  
                  theListing.activeBillingAccounts =  yyListing.activeBillingAccounts;  
                  
             }
             
         for(jsonPrimaryCategories  c1 :theListing.primaryTags) {
                jsonPrimaryCategories xCategory = new jsonPrimaryCategories();
                xCategory.id = c1.id;
                xCategory.value = c1.value;
                cloneCategory.add(xCategory);
                }
             }

             
         strPrPromoId = theAOpportunity.Enroll_Promo_Code__c;
         Account_id = theAOpportunity.Account.Id;

   
         rs_acct = [Select Id, Name,  Customer_Id__c, Owner.FirstName, Owner.lastname, Owner.Account_Rep_ID__c
                  FROM Account
                  WHERE Id = :Account_id
                  LIMIT 1];

         // SET DEFAULT VALUES
         theMOPAccount = theListing.activeBillingAccounts[0];
         //strMOPId = theMOPAccount.Id;
         
         //theCategory = theListing.primaryTags[0].Id;
         //strCID = theAOpportunity.Account.Customer_Id__c;
         theBillingDay = '1';
         theBillingMonths = '1';
         theTiers = '1';
         theAllocation = '1';
         theDiscoutType = '1';   // FIXED
         theDiscountValue = '0.0';
         System.debug('theAllocation : ' + theAllocation );
         Date lDt = theAOpportunity.Campaign_Start__c;
         if(lDt  == null)   {lDt = date.today();}
         strConvertedDate =  lDt.month().format() + '/0' + lDt.day().format() + '/' + lDt.year();
         System.debug('strConvertedDate: ' + strConvertedDate);
         }

Really nothing related... but it's necessary for the progtam to run..... but it doesn;t touch the "strPrimryCatId " variable....