You can download this update for A7 and just install it over your existing version: http://server.conitec.net/down/gstudio7_setup.exe

Then you should apply this patch here which fixes some bugs with the version:
http://server.conitec.net/down/gstudio7_patch.zip

Afterwards, everything should work just fine

Shitlord by trade and passion. Graphics programmer at Laminar Research.
I write blog posts at feresignum.com