I wish I understood more about what protocol the Checkpoint VPN client is using, because I'd like to do this, too.
the options in the interface for VPN are L2TP and PPTP
With L2TP, you get Server, Account, Password, Secret
With PPTP, It's Server, Account, Password, Encryption Level.
Password defaults to "Ask Every Time", so if that's where you enter your SecureID, then we're in business.
I haven't had any luck, but there aren't that many combinations to try...