playing pal ps2 in usa online

I recently got back from duty overseas where I bought a PAL ps2. I was able to play it online at my base and I was wondering if I can use it online here in the US since it is a PAL version. Are there any connectors or adapters that I gould get that will allow me to do it.

If its an old 'fat' PS2 (v1 - v7) then there are ways to play online with it, on both US & PAL games. But if its a slimline, then you're outta luck I'm afraid. It'll only play PAL games online.

its a silver fat one. Hte serial number is 50004.