Trouble with Revision and hdtp mod for Deus Ex Thread

I am at the cemetery and and It keeps saying Cannot open Io_Paris_Entrance. Than sends me back to the cemetary with Dowd missing....sort of like being sent back there after I already killed everyone and talked to dowd and I cannot escape the map.

What does this mean?

Also for HDTP

No matter what folders I put the files in. It keeps either corrupting the game where it wont launch or there is no difference between the graphics.

What am I doing wrong?