WooHoo, MM have just released a TechNote titled, Double-clicking in the Files tab moves focus to root node. It deals with one problem that anyone who uses HS have come across.

Along with this there has also been a couple of other TechNotes released:
Exporting FTP and RDS settings
HomeSite/ColdFusion Studio 5 causes a 'Class not registered' error
HomeSite 5.x: Error when using Visual Source Safe with HomeSite/HomeSite+ on Windows Server 2003