If i'm not wrong, Webberf1 put a batch file for those who want to use sigshots for other roster patches.
Also don't forget to install ILT first. Then roster patch. Then Kris's 1.34 aiact.
Read carefully readme files.
You should put that batch file into the roster folder you've downloaded.
For Andrew's roster:
You should put batch files and its other components into the roster folder which is located in the saves folder of My Documents/NBA Live 08.
The full path should be like this:
C:\Documents and Settings\(Your User Name)\My Documents\NBA LIVE 08\saves\Andrew's Roster
Then finally, double click on that batch file and follow the progress.