Stop trolling, Paul I am starting to think I am going to have to do this myself and stumble through it myself. Also looking for TIS disk.
Go to www.bavauto.com They have tech articles (within their newsletters-check the archives) and you can buy everything you need there. If that isn't enough they also have phone tech support. Or, you could e mail Mike Miller for his old school maintenance guide, or advice.
I have the "ole skool" guide from Mike it is extremely helpful, but certain things are a bit different on the e92. I.E there is no drain on diff and the fluid from the slush box is different. I plan on sending my findings to him when I am done as so it will help others in the future.