Recent post forum block - avatar problems

[mathforum]

Hi everyone,

I've spent hours today up on this topic and trying to mess around with PHP a bit, but nothing has worked so I hope someone here can point me in the right direction. I have enabled a forum block that uses one of the default vB functions of recent threads organized by "new replies". It works great except for one remaining problem - the avatar thumbnails belong to the OP of the thread and don't change to the user who posted last, which is very confusing and already getting complaints from my users. I found a way to delete the thumbnails altogether but it looks empty like that so I hope there is a way to have the avatar thumbnails correspond to the user who wrote the last post.

Any ideas?