We've set up some guidelines for who can post in the Buy/Sell/Trade forum to protect the membership. This is especially relevant while the site is so new and no one has any built up post counts to use as an indicator of status within the community.
That being said we can still set you up to sell if we know you from another forum, etc. which I do in your case so I'll go ahead and make the upgrade to your account. Please let me know if you have any problems and good luck with your sale(s).