Seems to me you are asking these questions too late, but maybe your course intends to simulate the pressure of trying to write something against an unrealistic deadline with unfamiliar tools?

However, you have come to the right place to get some help sorting out your problems. Your first task though is to do a little research. Take a look around CPAN for modules that mention HTML and Template in their names. Also take a look there for CGI and Template or Form related modules.

Good luck with the project (and try to fit some sleep in somewhere along the way).