Thai Airways Royal Orchid Plus - 7442 or 7443 ???

Which 747-400 on NRT-BKK-NRT???
Will fly in business class on TG 677 on 7 feb 2010, and TG676 on 26 feb 2010 ; I can’t find out which 747-400 configuration it’s supposed to be (7442 or 7443).
I know that TG is notorious for their last minute swap of aircraft....

It's scheduled as a 744.

744 - new C/F

747 - old config

So...
The 744 should be the "7443" (on seat guru) config, I guess!
Thank for your help
jcqs