GPG compatibility to PGP 6.0 or above

[chris gamble]

I work with a small company that needs to receive encrypted files from a 
vendor. The vendor is specifying that the public key that we provide 
them be compatible with PGP 6.0 and above which i assume means using the 
IDEA algorithm.

Does PGP 6.0 or above mean it uses the proprietary IDEA algorithm, and 
can pgp work with this (unfortunately in accordance with USA laws)? If 
so, are there java or COM components we can use to help build a service 
that decrypts these files?

Thanks,

Chris Gamble