If you want to sell on ebid, you will need to upgrade your account to Seller or preferably Seller Plus.
Then just get stick in and make a few listings.
You will soon learn - its easy.
But here are three popular suggestions for ebid newby sellers.
List with a BIN so your listing gets sent to Google Shopping for free
Don't use Run until Sold or your listings will never rise to the top of the browsing list
Don't use all caps - its hard to read.
And why not buy a few things from ebid to get to see how it all works and to support ebid members who have kept this place going for the last 10 years.