Help understanding the donation goal/amount display on main page of romulation

ok, need to figure this type of thing out, for another website to display its amounts and goal. auto update and cycleing monthly. I have found information that seems relevant but they call it a paypal hack, i don't understand and can;t contact seph. ??? or does he have an e-mail, i'll check. Anyway here is a .pdf that says some crap about it.http://oreilly.com/catalog/payhks/chapter/hack79.pdf

What RomUlation uses isn't a hack, its a standard postback used by virtually all automated systems that use paypal.

thats what i mean. why do all these things i found call it a hack. its stupidi know RomU uses proper stuff, before people are scared off. oh well, i'll figure it out. with the help of many confused people :) "thank myself for picking others minds"

well. i would ask seph to drop a quick description in here. then lock it. just so it has full closure.