<apex:repeat var="prod" value="{!relatedTo.OpportunityLineItems}">

I have an email template with apex:Repeat for my product line items. Is there a way to Filter some records

I am creating an email template for related to OppurtunityProducts. 

My field is Quantity which is Number(10,2) . I want to display 1000 as 1,000. how can i format this 

Some day ago i can delete trigger/classess from eclipse by clicking on it and then "delete" but now doesn't work.

this is the error:

Remote delete failed with the following message. Delete will be aborted. package.xml: null canc_campagne_data_rinn: null

if i open the package.xml i didnt' find the trigger and test classes which i want delete:

<?xml version="1.0" encoding="UTF-8"?>
<Package xmlns="http://soap.sforce.com/2006/04/metadata">
    <types>
        <members>*</members>
        <name>ApexClass</name>
    </types>
    <types>
        <members>*</members>
        <name>ApexTrigger</name>
    </types>
    <version>14.0</version>
</Package>

I try to delete project in local and create again another project but still doesnt' work, how can i do ?

thanks

I am creating an email template for related to OppurtunityProducts. 

My field is Quantity which is Number(10,2) . I want to display 1000 as 1,000. how can i format this