Same problem here:
First demo crashes after some seconds: "Fehlermodulname: PhysXCooking.dll"
Quote:
Log of A7 Engine 7.82.3 run at Tue Mar 23 16:24:54 2010
Robert on Windows NT/2000/XP version 6.0 Build 6002
Options -diag
App: G:\dev\sdk\pXentPro_ClothDemo\main.exe in G:\dev\sdk\pXentPro_ClothDemo\
Author: Chris Kahler

MM mixer opened
DSOUND device opened
DI interface opened
Start Window opened
(c) Conitec / oP group Germany / www.3dgamestudio.com
A7 Engine - Pro Edition V7.82.3 - Jan 7 2010
Linking G:\dev\sdk\pXentPro_ClothDemo\main.exe...

Mouse found
Lautsprecher (Realtek High Definition Audio) opened
NVIDIA GeForce 9800 GTX/9800 GTX+ pure T&L device 1ff9 detected
D3D device NVIDIA GeForce 9800 GTX/9800 GTX+ 1ff9 selected
Opening 77 resources in MAIN.EXE...
pXentPro.dll opened
main.wrs opened
CreatePart: function not found
test: function not found..

Running MAIN.EXE.
Main started at 1.569
set_cloth_options_startup started
physX_startup started
def_startup started
mtlfx_startup started
ControlCamera_startup started
D3D_Init Window: 1680x1050 -> Window: 1x1680x1050x32
Video memory found: 2010 MB
Main loop at 2.664...
Server started at 2.664
Client started at 2.664.
1st frame with 2010 MB at 2.665
LevelInit at 7.608
0 entities 1 cameras 0 lights 0 sounds 0 paths
0 lmaps 0 textures
Physics restarted...ok
LevelReady at 7.612




Regards, Robert

Quote
Everything should be made as simple as possible, but not one bit simpler.
by Albert Einstein

PhysX Preview of Cloth, Fluid and Soft Body

A8.47.1P