The patch that converts Jazz 2 from 1.23 to 1.24 is illegal because Epic never authorized it. I'm sure you can find it, but it would be against the law to use it. Your best bet you would be to buy a copy from Aiko or if you can find one on eBay. It's not really worth it. All you gain is Lori and access to a few servers. It's a completely different game, not an upgrade. Lori has the sidekick (sort of) of Spaz and the copter ears of Jazz.