i dont want to buy the highly over priced apple one will the app resupport work for a cheap tv out cable off ebay like this one...

NEW USB AV TV Out Cable for iPhone 2G 3G Ipod touch - eBay (item 230467563464 end time Dec-23-10 10:51:10 PST)

It says only for 2.2 or older but would resupport in cydia work? If not does anyone know another way so i dont have to buy the one from apple... thanks