We have just migrated a customer from SBS 2003 to SBS 2008. The migration has went fine and everything was ok until thier Sage installers came to install Sage 200.
They have said that it will not work on a single server solution in SBS 2008 becuase of the Exchange features in IIS. We have installed premium with SQL and SBS 2008 on the same box, which is a supported configuration just not recommended.
Sage needs to be installed on the Default WebSite, can you move all parts of the website to a different name and port?