Simviation Forums

Where can I find out info about the ETO expansion? I've been flying  FSX for awhile now; I have had the CFS3 on a old XP and now run Win7 and would like to get into the Combat again.
I see post about ETO expansion, Do I need it??
Can I do multiplayer ( right now I can't sign for some reason)?

Any help would be appreaciated
JT