I have been using this for a few days now and have noticed some bugs.
I am using Windows 7 premium 64-bit, AMD Atholon 160u 1.80gb, 2gm ram
First bug: When I drag and drop a sks file into the main window it sometimes (not every) crashes the program.
Second bug: When I hit "save" it saves it to the last directory I was in, not where the file should be saved, which scared me quite a bit cos I thought I'd lost all the work I did.
There was another one but I've forgotten since I encountered it, if it happens again I will let you know.
Otherwise this is a very good and useful program!
Found the other bug
IF I am rendering a WAV and Arkos Tracker loses focus (ie I'm doing something else while waiting) then it freezes Arkos Tracker and it crashes.