Uploading Thumbnails

I'm still having a problem uploading both the thumbnail images and full size images. I'm using data assist and universal email. Right now, my product insert page has both a full size image uploader and thumbnail uploader (see attached), I added the upload behavior (see attached). I made sure the source codes are correct according to the instructions, and in the end I only get the full size images to show. The product result page shows nothing. I've tried several different ways, and it seems like whatever size of image (thumb, full size) I upload, it shows up on the product detail page. For example, if I upload a thumbnail image, it would show on the product detail page only. It seems like it skips the result page. I'm running out of options here. Please help.

1. Do I need a database field for both the thumbnail images AND full size images? (right now I have a field called productImage and productThumb)

2. Do I need 2 image uploaders on my product_insert page for both the full size and thumbnail images?

I've tried several different combinations and I can't get the thumbnail image AND full size images to appear at the same time.


See attachments.

Thanks,
Craig