Are you just unable to cast cure on yourself? Are you able to cast it on monsters? If yes, then the issue lays with the pk function. I'm not 100% certain, but if I recall right, it's under the section
Code:
#region SkillAttributes2n6n12
Should be 2 lines you need to remove to make it work.
something to do with if nopk map I think.
Anyway, I hope that somehow helps, if not, leave a message, and I'll respond asap with a bit more info.