also, always make backups before installing anything... this way here, if something does go wrong, you have a safe zone...
and when you do get a BSOD for BC, it is a script error and 99.9% of script errors can be resolved... all you need is a console report... same deal if something no longer seems to work - a console report will explain why...
(there is a stickied thread in the Tech Support forum that describes to you how to get a console report)...
as far as the SG Pack, versions 1.0 and 2.0 (which you say you have installed) are all outdated... there is a version 3.0 now at BCFiles, and you dont need either 1.0 or 2.0 for it, as described in the README
THIS PACK WILL CREATE PROBLEMS IF YOU INSTALL IT ON TOP OF THE FIRST 2 PACKS...USE A CLEAN INSTALL AND DON'T USE THE FIRST 2
PACKS WITH THIS ONE.
and it will work on a KM1 install, as it was tested on such...
also, in that README, says where to go if you should run into any problems with the mod...
altho the link to Dave's forums may be an old one, here is a link to his SG Tech Support forum:
http://bcs-tng.com/forums/index.php?board=55.0