Same here, working on Windows 7 x64.
Advancemap 1.92 or 1.95 is launched, the icon appear on the taskbar but it won't show up.
I do have Net Framework 3.5 installed.
Edit : I just tested all versions of AdvanceMap, only 1.40 opens and is glitched as hell.
Awaiting for this Awesome Map Editor to...