Are you sure that CloneCd will not work with your HP7500?? Have you only tried version 2.8.3.1? I would suggest falling back 2 versions and you might have success...If the settings are right I know of several people who have 7500 series drives with a previous version of CloneCd and they can copy all Safedisc and Safedisc2 games.
If you just can't figure it out use BlindSuite, it is the second best software program out there (**Yes it is BOT-CK
)
Anyways let me know if you need more help and I can email you exact directions for clone..if you need it..or just search for my prior posts. :P