Hey DragonKingUK!
I was visiting Captain Fabio's page and saw that you'd asked him a question. I had a spare few minutes so I thought I'd answer it for you - I feel a little stalkerish but whatever at least I'm being helpful lmao. I'm just impatient waiting for stuff like that lol so I thought I'd end your misery.
To claim a Pokemon, you go to Pokemon General. At the top of the page there's a thread called the Pokemon Claim Thread. Here's a link directly to the thread. To claim a Pokemon, just post in that thread! Make sure you read the first post though because there's a specific way you have to post what you want, so you don't wanna mess that up.
To officially pair somebody, you scroll to the bottom of the index page to Other Trivia, then go to The Pairing Thread. Then just post your name and the name of the person you wanna pair with (making sure to copy and paste the pair list and add yours onto the end). Then you're done :)
Hopefully that's helpful. Also welcome to PC!