[magic452]

For win 7 do these things first.
Put the game in a separate game folder, DO NOT use programs files folder.

Make sure you run the game as adminstrator.

Use sh4.exe not sh4.gu, Sh4.exe is found in the main installl directory, make a short cut of that.

With the stock game running OK but no mods run, the above will help.
Put the mods in one at a time and run them to be sure they are working before adding any more. You are using JSGME so they should go in with no problem but make sure the mod is compadible with all the others. Read the readme's to be sure. Go easy on the mods untill you get the game running smoothly.

The game will run with two gigs but three is better.

Good luck and good hunting
Magic