Problem with vbGallery creating thumbnails from uploaded images

[sydude]

Hi guys. I have a new issue that's come up that I can't figure out on a very long-time running vbulletin and vbgallery installation, and would appreciate your help in figuring out what the problem is.

In a nutshell, when a user uploads a picture in vbGallery, it correctly converts the full size image into a window-sized version and a thumbnail version, but it doesn't save the filenames correctly.

For example, if two images are uploaded with the names 'img001.jpg' and 'img002.jpg', vbgallery should:

1) save the original full-sized image as 'img001_original.jpg', then
2) save a medium-sized version to 'img001.jpg', then
3) save a thumbnail version to 'img001_thumb.jpg', and also
4) write these filenames to the database

But what has recently occurred is that it's stripping out the original filename when creating the original and thumbnail versions, writing only '_original.jpg' and '_thumb.jpg' for every single uploaded file. So there is only one original image and one thumbnail in each category/directory. It does this both on the server as well as the database.

The problem occurs on both my live as well as my testing server. Here's the problem on the test server if you want to try it out.

Your help would be greatly appreciated!

Sydude