I would like to know as well! Please share.
collin@internetmillionaires.ws
thanks for offering

I love referring people to GDI for a number of reasons and there is just one thing that I think desperately needs to be added that will get major brownie points; - customizable banners for the web templates in sitebuilder.

If you had 10 website with the same colors but different banners images, they would look like 10 different sites; but if you had 10 different sites with the same banner they would all look like the same site.  The one thing that really gives a site its feeling of uniqueness is the banner image that is displayed; it reflects the business and the owner so i think making the option of changing the banner image to the templates is a very important feature. 

I really hope that this can be considered seriously and implemented in the near future.  I love GDI!
Any helpful comments or other ways to accomplish what i'm saying with sitebuilder would be appreciated.