you should read the percusa one on gamefaqs, unfortunately the dumb maint thing on those forums means that older posts are soon deleted so the previous parts are long gone.
anyway, you can also check out the one I'm doing, another spore for the BBS:revival of the inceptus. you don't have to read the origional one which I'm continuing off of, but if you do read the origional one, let me warn ya that it gets kinda crappy on the last few pages of that first one. I didn't origionally do the first one, but yea....