I'm running 3.5.0 with CMPS 2.0 and every post icon that is not default (the ones I added) doesn't show up in the news module.
I have the "show post icon" activated, and the custom post icons appear on the Forum that is set up as the news module source (so I know it's not a VBulletin problem), but the only type of icons that show up are the ones that come default with VBulletin. Here are 2 pics to maybe help me explain a little better.
The Forums page, showing all of the post icons (custom and default)
The Index Page, showing only the default post icons.
The Icons CP in the VBulletin 3.5 Admin CP.
I've already tried resizing, converting, CHMODing ... nothing did work