Is SCP Server Version 1.0.4.9 compatible with TLS 1.1 or TLS 1.2?
I think you're thinking of two different things.
SCP uses SSH, which uses key-pair authentication and is built right into the protocol. Fairly simple to work with.
TLS uses PKI certificates for client and server authentication and it builds on SSL specs, which are commonly used in things like secure web browsing.. Not so simple to work with.
Maybe you're actually looking for something like FTP-TLS?