I just downloaded it the other day myself. I was able to use it to build a cube using the sample MDL that comes with Sessionizer. It's pretty cool. I agree that it would have been nice if Cognos included some doco with it. At least a data definitions doc.
Anyway... in the INPUT section of Sessionizer, set the WORKING DIRECTORY to the path where the PPES_AUDIT.LOG file resides.
In the OUTPUT section, in FILENAME type the path and file name of the CSV file. Sessionizer will read in the PPES_AUDIT.LOG file and spit out a translated copy in a CSV file. In the MODEL FILE PATH, type in the file path and file name of the included MDL file that comes with the Sessionizer package. It is PPESAudit.mdl.
The only other section I had to update was the POST PROCESSING. Make sure the path to NOTEPAD.EXE is correct. I think the default has it looking in C:\WINNT. I'm using XP, so I removed the C:\WINNT and just left it with NOTEPAD.EXE followed by the path to the Sessionizer.out file. My line looks like this:
notepad.exe E:\Cognos\PPESAudit\Sessionizer.out
If you determine what the UsageCount and ProcessingTime measures in the cube are, then let me know!
Good luck!!!
Matt