In the beginning of 2009 we made a major RadControls skin rework, which had several different goals. Indeed, this was a major breaking change, but also a one-time initiative which brought the expected positive results.
I strongly recommend you to move on to the new embedded skins of RadControls. If you insist on having the old looks, you can use these converted skins:
Note that you will still need to make some further changes to your skin, because there have been new features included in RadControls since Q1 2009, which have led to the existence of new CSS classes and styles, that you don't have. So the bottomline is that if you prefer using a custom non-embedded skin, it will be best if you create it again, based on the current embedded skins:
Let us know if you have any specific questions about the new skins.
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