If you are like me and don't know you way around the ebay website. There is one page that will help you to find anything related to buying selling, problems, etc. This page is located top of page above the icons, Buy, Sell, My Ebay, etc.
The areas I found of particular help were:
CURRENCY CONVERTER - I was always searching but could never find this.
BLOCKING DUMMY BIDDERS - An invaluable tool I found for blocking dummy bidders which I had a problem with, with an item I was selling. Eventually the item sold without a hitch.
FORUMS - Fantastic place to air your view and get information. If I hadn't found this, I would never of known about the above.
CHANGING EMAIL ADDRESS OR PAYMENT INFORMATION - You will find this here.
So in a nutshell, go to the SITE MAP, for all your needs. Go through it carefully and most of your ebay questions and answers will be there.