I know there must be a way of doing it because ive seen it on other blogs I promote wp themes on my blog and want to show off a demo link of it How do i do this without multiple wp installs Is there a plugin for this?
Hmm, I have definitely seen it before. I know it is possible too, but every search in the Wordpress codex pulls up nothing or people who have tried to do it and failed.
This is the closest I could find, searching for a theme viewer for wordpress: http://thecodecentral.com/2008/02/21/how-to-create-a-wordpress-theme-viewer It shows you how to make one, so if you're not afraid of php, you could roll yer own