REBOL to baseportal.com

Hello. The web site www.baseportal.com is a DBMS system that allows one to not only construct DBMSs but has a programming language that is embedded in a web page and also allows PERL.

I have literally used the system for many years and it is very stable.

In order to construct an application, one must log into the site with e-mail and password.

I would like to use REBOL to create a web page that runs under their system. That means creating an "htx" file (instead of "hamlet"). My problem is that I can not figure out how to "log into the site" while running in REBOL.

Does anyone have an idea?