You dont necessarilary have to remove the 10 (5 each side) screws in the roof. They simply hold the roof panel to the two sides. If you remove the four Across the roof at the front, the four down each side below the windows, the one on each side about half way up, in front of the windows, and one each side that holds the short strap each side of the door, then remove the rear door seal, the whole rear section from sills up, should come off in one piece. Then just remove the rear door.
Try am impact driver to dislodge the stuck screws.

Cheers
David

Growing old is compulsary, growing up isnt, and MUD MAKES EXCELLENT TOOTHPASTE.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my own experiences. Take such advice at your own risk.