Just post in the thread you want edited something along the lines: "Mods, please edit title to/price to/..."
Or if you sold the lot or want it withdrawn, post: "SOLD/CLOSED/WITHDRAWN/..." and the first of us to see it will edit it accordingly.
As for list of mods, not all mods are always active. So it's best to just scroll to the bottom of the
http://forum.multitool.org page and see under
Users Online who's here at the moment. Moderators are marked in blue.
And there's also the Report to moderator option which gives all of us a notification. You can use it to report SPAM or just to ask for an edit.