Intersting thing to note is that now (from 1/21/2004) 1.15b is available from
www.civ3.com, so it's now "official beta", like 1.12b.
Also, as far as I understood, the official patch at the end of February would be the same 1.15, but with official stamp (and how knows, maybe new version of Safedisk?

)
Still, since neither 1.12, nor 1.15 no-cd cracks are yet available, I would be satisfied with any version of crack.
EDIT:
Question to coders from unexperienced user.
Which Safedisk uses 1.00, which 1.12 and which 1.15?
What actually makes those later Safedisks so difficult to crack (de-assemble). Some sort of encryption?
Were I can learn more about Safedisk and ways to crack it?