I have now got a polish photo id....but I've lost a lil faith in the Polish transport system!
Oh come on, haven't you ever dealt with some of the knuckleheads that work in the UK system?
Out of curiosity, what photo ID did you get? As far as I understood it, they stopped issuing any sort of official ID to EU residents.
Incidentally, in such cases, just give them a UK address. If they won't accept it, then get the police involved. The police simply won't bother you - they realise that it's more hassle than it's worth to try and enforce a fine against a non-Polish national. Of course, they probably won't want to get the police involved if you do have a valid ticket.
I once had similar problems in Poznań with a particularly alcoholic ticket inspector. He tried all sorts of threats, including that I'd get a 360zl fine if the police got involved. I told him 'ok' repeatedly, until he gave up :)
But one word of advice : never, ever, ever give up your passport in Poland. Give them a photocopy, or even better, carry around a UK driving licence (provisional will do!) - but do not hand over the passport. It's simply too valuable for some idiotic ticket inspector to even touch.