how to download ichat to PC

Hi,

You don't as it is an Apple App.

iChat can log in to Jabber servers and the AIM service.

It is compatible with AIM for PC (Text, Video and Audio Only chats)

Text chat can be done to Jabber apps or GoogleTalk Logins

9:37 PM Friday; September 21, 2012

Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and and iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously