Hello King Wilder,
There were major skin changes between Q3 2008 and Q1 2009. Please refer to the following resources for details on the matter.
Changes and backwards compatibility in RadControls latest
RadControls for ASP.NET AJAX receive a major face-lift!
Using pre-Q1 2009 skins with Q1 2009!
All RadControls Q3 2008 Skins Are Now Compatible with the Q1 2009
If your problem persists, I think it will be best if you can
open a support ticket and send us a simple running project (incl. your custom skin, CSS, images, DB backup
if needed and so on) demonstrating the problem (and step-by-step instructions on
doing so). In that way we can reproduce and pinpoint the problems you're facing
on our side, understand the logic of your application and provide a solution.
Thanks beforehand for your patience and cooperation,
the Telerik team