Help with resize pix to thumbnail from mysql files in the directory

Hi Shane I seen your message about binary extraction and although I understand the concept it is past my pay grade. (newbie) I am working on customizing a cart and I am looking for an example of script to work on that extracts a file name from the db and resizes into a table. I tried a few things but keep getting a problem with headers etc from the html template I use. The only thing I have come up so far is put my template into a js file and use the header I need for the php. Any hints tips etc or examples would be great. I am customizing mycart so the catalog and descriptions are graphical rather just text.