If I understand your problem correctly, you are unable to go to PartyPoker.com in Thailand, and therefore do not have access to the Party Poker (.exe) installer file.
As a favor to you, we downloaded the PartyPokerSetup.exe file for you and uploaded this to our site. I would assume you would have no problems doing a direct download from our site, so hopefully this will help you!
You can try downloading the PartyPokerSetup.exe file by going to:
http://www.rakebackdirect.com/PartyPokerSetup.exe
I hope this works for you/helps!
Tim
RakeBackDirect
(2+2 mods -- if there is for whatever reason a problem with us positing the above direct link, please feel free to edit/remove this post, thank you)