How do you move Sitefinty down a directory without messing u

I have Sitefinity on IIS deployed as a website, and I am trying to move it from the website root to a subdirectory (application) under the website.  The current url is something like mysitefinitytest.aa.com, and I want the new url to be mysitefinitytest.aa.com/mysite, the Sitefinity being deployed in the application mysite under the website root.  When I try to move Sitefinity to the subdirectory, however, the buttons break and return 404 not found, since they are attached to the root.  Is there an easy way to accomplish this move without breaking the front facing website?