I'm trying to use the Bulk API to execute a query and get ~230,000 records back. But when I execute the query, instead I get a cryptic id number and no records at all. Can anyone help?

I'm using both the Force.com Toolkit for PHP and the PHP Bulk API found here: http://wiki.developerforce.com/index.php/Web_Services_API#PHP

In short, here's what I'm doing:

// connect to Salesforce using Force.com Toolkit for PHP
$sf = new SforceEnterpriseClient();
$sf->createConnection("enterprise.wsdl.xml");
$login = $sf->login($username, $password.$security_token);

// initialize the PHP Bulk API
$sfbulk = new BulkApiClient($login->serverUrl, $login->sessionId);
$sfbulk->setCompressionEnabled(true);

// create a Bulk API job
$job = new JobInfo();
$job->setObject('Contact');
$job->setOpertion('query');
$job->setContentType('CSV');
$job->setConcurrencyMode('Parallel');
$job = $sfbulk->createJob($job);

// add the batch and close the job
$batch = $sfbulk->createBatch($job, "SELECT Id, FirstName FROM Contact LIMIT 10");
$sfbulk->updateJobState($job->getId(), "Closed");

// monitor the batch status until it's done
while($batch->getState() == "Queued" || $batch->getState() == "InProgress") {
    sleep(5);
    $batch = $sfbulk->getBatchInfo($job->getId(), $batch->getId());
}
if($batch->getState() == "Failed") {
    echo("Batch failed!");
    exit();
}

// get the results
$results = $sfbulk->getBatchResults($job->getId(), $batch->getId());
echo("Batch complete! Results: ".json_encode($results));

And the results I'm getting from running this script are:

Batch complete! Results: <result-list xmlns="http://www.force.com/2009/06/asyncapi/dataload"><result>752A0000000GnBh</result></result-list>

I have tried several different queries. Some of the batches that have more complicated joins had a "Failed" status, but this is a really simple query, and I should be getting 10 contacts back. Instead I'm getting "752A0000000GnBh" with no indication of what this is an id for.

When I do the same thing except all with the Force.com Toolkit for PHP it works fine and I get the 10 results I'm looking for. The problem is when I want to select all of the records in the Contact table I run into the API request limit very quickly and can only process about 20,000 records in a single day. It seems like using the Bulk API would fix this (I don't have to constantly make queryMore() requests), but it doesn't appear to be working.

I googled around for a solution and found this blog post: http://blogs.developerforce.com/engineering/2011/03/bulk-api-queries.html

It says the query command in the Bulk API is a pilot feature and "Since this feature is still in pilot, first you will need to contact your Salesforce representative to have it enabled for your organization." I have called custoimer service and they assured me that my Salesforce account does have this enabled. Which would make sense, because it never gave me an error message.

Am I just using the Bulk API wrong? If so, how can I use it to get records from a query? If not, is the Bulk API broken?