LWP problems

[anthony . joshua]

Im sure there is a fairly simple answer to my problems using the LWP notation 
but I cant seem to work it out. Im trying to send (1) input i.e. a list of 
genes and (2) effectively press the "START" button on a website - http://
fatigo.bioinfo.cnio.es/ - remotely using the LWP notation. My problem is that 
unlike my previous experience with screen scraping the URL of this website 
doesnt change with a particular request containing the query within it. - any 
help would be appreciated
thanks
Anthony