Put the uncracked EXE, the ICD with the same name, and the dplayerx.dll (all from the original CD) into the directory where you have the unsafedisk executable. Start unsafedisk, click decrypt game, point it to the ICD file, click open and let it do it's magic. It will make two exe files...testme.exe and testme2.exe; You need to find out which one doesnt crash by running them and making sure they dont perform illegal operations or anything like that. Then, copy the entire contents of the CD you want to copy to the hard drive, replace the exe with the one you've made (the testme that didnt crash) and burn it all to CD.

P.S. Make sure you label the burn with the same label as the original