Go to this link
http://www.psxcopyworld.co.uk/
Look in tutorials and then in ppf-o-matic, that will give you a general guide on how to use the program.
To find patches, do a net search under the heading
GAME PATCHES FOR PS2 and just follow the links.
There's loads of good sites out there and you should find what you want.
Hope this helps.
ARGO.