Help me - here do i find a walkthrough, I am totally stuck!!

Not on these forums. The only thing i can suggest is phoning one of these walkthrough guides in magazines, (although these do work out quite expensive), or, ask me and i may be able to help, as i have nearly finished the game!

try this one:
http://db.gamefaqs.com/computer/doswin/file/project_eden.txt

This is good for the first few levels:

http://www.cheatgoat.com/pc/projecteden.shtml

BUT he hasn't bothered posting up anything beyond the hospital yet, (and, typically enough, I've got stuck for the first time on the SkyTran level - no weapon energy left to recharge battery, and no way of getting anyone to a working recharge point!! - Anyone else had this problem? Think I may have got a bit trigger-happy with the disk gun).

hey ebbo. wheres the rover in level 1?

Near the cafeteria, there is an area to the right of the kitchen (where the guy is making food), that has a door. Open it and climb the stairs to access the UPA service slot, to retreive the rover. I beleive you'll need Carter for this.

And gamefaqs.com has the guide you need, as described in a previous post.