There is no binary distribution for biomart-perl. It is only available as a source distribution from CVS.
To check biomart-perl out from CVS, you need to type the following commands on the command line prompt. The password you need to enter when asked is CVSUSER.
No compilation is required, but it will need to be configured before you can use it. For details on how to configure it, please refer to the section on installing biomart-perl.