This may not be of such great help, but i'm doing something similar in concept as you are, but am using HTML::TableExtract with LWP::Simple.

It took me a bit of time to find the location of the information in the table (it's a complex HTML made up of many nested tables) i'm parsing, however, once i got that, i could extract the information quite easily.

The documentation (of HTML::TableExtract took me a little while to work out, but after i did, i could create my own data structure to do with what i liked.