you might wanna make a pay pal account if you wanna receive your money online.
then if you want you can link your pay pal account to your checking account and after you receive money you can trasnfer the funds to the checking account.
nevertheless, as a quick over view from top to bottom.
-create account.
-click the section to sell.
-and follow the on screen steps and each section should have a help link if neccessary.
-eventually item is posted.
-wait for auction to end
-collect funds
-once funds are cleared, ship item.
and again you might wanna get a pay pal account. if i sell something, i will have paypal as only form of paypent.