Hehe, u don't need to download anything to do scripts. U don't even need IEEP. Unfortunately the teambg CRE editor doesn't let u set AI scripts for creatures so u have to hex edit the CRE file. Ok so u need a hex editor. The only reason I'm saying all this is that, it doens't take long to learn, u just need a bit of patience. It's not rocket science. Over 50% of ppl here could probably do some scripting and get it working.
Anyway, to make a script u just need a text editor and the compiler which is in your BG2\script compiler folder. There is also a quick reference there for help.
All the commands u need are in the IDS files.
Anyway, I'm just saying this cos ppl complain- I'm just letting them know that they CAN do something about it, if they want.

Oh yeah, noticed a mistake in that script. Should be SpellCastOnMe, sorry