Yes, you can muck with the templates, but to change the FAQ in the latest version, you don't need to make any changes. These boards are running a slightly modified template to get the sidebars on here.
The forums subdomain is either in /forums, /subdomains/forums, or under its own FTP account from what I normally see/use.
I don't know if this helps with any cluse as to where the forums.skirtmag.com is hosted, but here is some information about it:
http://uptime.netcraft.com/up/graph/?host=forums.skirtmag.com You should also head over to
www.networksolutions.com and WHOIS skirtmag.com for some information.