I read on some forums and on the readme that this version is compatible with various other big mods (since i wanted to use it with bgtrilogy, dark side of the sword coast and darkest day) but I can't find it on the net. the only I can download is the V6.05; where do I find v6.04 ?

dude, have you even looked? try this post - have a glance at the signature, and see if you can find the link you need there...