GERMAN VERSION
Finally got it to work
1) Unistall game, manually delete ArmA2 folder, remove any leftovers from My Documents
2) Run CCleaner (tis free) or similar Registry cleaner
3) Re-install game...DO NOT PATCH yet
4) Play game version 1.00, run a scenario (you don't have to finish..just get it started then exit)...exit the game
5) Patch to 1.01...DO NOT PATCH to 1.02
6) Play game version 1.01, run a scenario (I used the Village one both times, and again..just get it started then quit), exit the game
7) Patch to 1.02
This process finally got me patched to 1.02 with no errors
NOTE: Trying to use a game save from 1.01 in 1.02 caused the game to crash, probably why the patch notes warn against using older game saves
Give this a try...it may help you get patched up. (arma2.exe in task manager while patching was not the cause of my issues apparently)