Currently version 9.0 is using WINPE version 2.x 32 bit version. There is a workaround to be able to do scripted install of 64 bit Windows 7. Please check the following community article:
Scripted install of 64-bit Windows using LANDesk
We also have an Enhancement Request for a 64 bit WINPE in the Landesk:
ER - a 64-Bit Windows PE$10531
Regarding SP2 for version 9 it is planned to be published this week, but we have no official release date yet.
You are correct in assuming that 8.8 is using WINPE version 1.x, it is a basic version of an XP. WINPE version 2.x is running on Windows Vista.
I hope I could answer all of your question, but if not just let me know.
Thank you much for the prompt response! I will take a look over that stuff, for some reason I didnt see it before hand.