My content management systems resides in a different directory than the site it is managing.  Therefore, I need to be able to upload files to the site or at least link them into my text.

 

For example:

 

public site is http://blah.com (made that up)

 

CMS site is http://cmsblah.com (made that up)

 

When I press the upload buttons (image, flash, media, or document) I want the editor to look into http://blah.com/files, but I can't make it do that.  I've tried setting the path virtual and physical but I get the error Invalid virtual path.  I know what a virtual path is so is there a way around this?