BF2 and BF2SF don't Mix

[zippysp]

I made backup disks of BF2 cd's for my son and using the BF2 DVD_MINI.MDS
CD-Image in DAEMON Tools v4. ------------no problems

Finally bought BF2SF and made him a back using Battlefield 2: Special Forces [ALL] No-DVD/Fixed Image #1

now Battlefield 2 nor does Special Forces play I have to uninstall then reinstall to get BF2 to work but still cannot get our backup of SF to run without killing them both. Need help please!!