When it comes to reaching out to the admins or moderators, simply click on their name then use the "start conversation" link that pops up. You'll be able to send us a message that way. Another way to contact me directly would be the contact us link at the bottom of any page. That emails me directly. Or if you have a problem with a specific post, you can click the "report" link at the bottom of any post or conversation. That reports it to the staff forum so whomever of us is online can address it fastest.
Now when it comes to the classifieds, you'll need to click on the upgrade link at the top of any page (on a computer at least). That will allow you access into the classifieds to post items for sale. Want to buy ads do not require it. Nor do pay it forward (free) items. You'll also gain access into the other sections of the forum that are for premium membership.
If you need any help please feel free to message me.