If gpg can't find the file which the signature file applies to, it asks the filename from the user. Signature is verified. Consult the manual of your software for details. X.Y.Z is the version number of the ssh release. If pgp can't find the file which the signature file applies to, it asks the filename from the user.
Signature is verified.
The international version of pgp-6.5.x is can check also the RSA signature. Consult your manual for details. Signature generated for gpg can't be checked with pgp-6.5.x. So it's not even worth trying.