Troppo: you want the image without the 'thumb_' filename:
Alternatively you can post the thumbnail pic so that when you click on it you go to the large pic:
The code is (URL=bigfile)(IMG)thumb_bigfile(/IMG)(/URL), replace ( with [ and ) with ]. You can also add text:
[URL=http://www.pixspot.com/albums/userpics/DSC_4537-copy.jpg]
Click to enlarge![/URL]
To see any of the code, just quote my post.
