Do you have the 3 dlls in the mIRC dir? Have you tried connecting to a server on its SSL port? To connect with SSL, you can use one of these commands:

/server -e irc.server.net sslport
or
/server irc.server.net +sslport
(-e or +sslport means ssl)

If that doesn't work, try copying the 3 dlls into the \windows\system32 dir? Then restart mIRC and try connecting as above again.

-genius_at_work