Hi,
The seeds can be purchased here: http://www.fruitlovers.com/seedlistUSA.html

That website is a very reliable source for seeds. I've bought seeds from him many times and they all came very fast and in excellent condition. It says the seeds are available from July-Sept though. You might try emailing him and seeing if he happens to have any first before ordering.

Here is a link that might be useful: FruitLovers.com

I also found this person selling the plant itself in a 4" pot for $40. http://www.pernellgerver.com/peanutbutterfruit.htm

No idea if that's a reliable seller or not though.

I highly recommend Montoso Gardens:

http://www.montosogardens.com/tropical_fruit_trees.htm

jb

Thank you everyone for all your replies.

I think I might wait for the seeds to come in season later on in the year, i find seeds way more fun and even though i fail on a fair few the ones you get to succeed far outweight the failures in terms of enjoyment