CptShaky

Thank you very much ! Love your mod

Try launching KSP.exe as administrator from your explorer. If it doesn't work, open KSP.log, find a line that looks like this: [LOG 19:35:36.036] AssemblyLoader: Loading assembly at X:\XXXXXX\SteamApps\common\Kerbal Space Program\GameData\Kerbaltek\HyperEdit.dll There should be an error nearby, paste it here

For Kerbin: "Geosynchronous orbit is achieved at an altitude of 2 868.75 km and a speed of 1 009.019 m/s." (from the wiki) http://wiki.kerbalspaceprogram.com/wiki/Geosynchronous_Orbit_%28Math%29 I can't help you more... If you don't have the com relays addon I simply suggest trial and error ! A satellite is lightweight and therefore easy to launch.

There's this nice little addon called SubAssembly Manager, I thinks it does exactly what you want http://kerbalspaceprogram.com/subassembly-manager/ Works like a charm with 0.21 ;-)