Dude, just register your nickname. Your talking about two different things.
[*]+r means you need a registered nickname to join the channel, type /msg NickServ help register.
[*]You don't have to pay for mIRC, after your 30 day evaluation it wil still work it just takes longer to load up. It helps Khaled alot, all proceeds go to the development.
I think you're talking about the first bullet point though, paypal has absolutely nothing to do with IRC or IRC modes for that matter.