1st time upgrading.
 

I'm planning on upgrading to 4.0 when the final version is released. I have done extensive theming on my current forum. Nothing custom* I just changed all the colors through the VB admin interface. When I upgrade will all my customizations be preserved? Sorry if this is a 'noobie' question but this is the first time I'm upgrading Vbulletin and am trying to anticipate any issues.

Thanks

Steve
www.satspeedprep.com