BG,
Be sure and temporarily disable any firewall and/or anti-virus programs when installing... some antivirus/firewall programs will think an installing program is malicious and locks up the system.
Likewise, run your defrag program before installing. Some programs run slow or not at all if the hard disk hasn't ben defragged.
If those two steps fail, delete and re-download the install file again... it's possible that the file got corrupted during download. (Why doesn't that surprise me coming from AOHell?
)
Hope this helps.