You use the sell form, use the advanced one.
You upload pictures and put in a description acturately describing stuff.
YOu put in your start price or BIN price and the postage costs, you get your postage costs by weighing the items and checking on the Royal Mail website how much it will cost to send you add about 20p for packaging.
The email address you put in for payment if you have less than ten feedback has to be your eBay email address, if you have not already added this to PayPal then you must do so. If you have more than 10 feedback then add your normal PayPal email address which you use to sign into PayPal.
When your item finishes you can either choose to send an invoice or not.
When you are paid you will get an email from PayPal saying you have received funds, sign into your PayPal account to see the payment, never send unless you can see the funds in your PayPal account.
If you have less than 20 selling DSR's or less than 100 feedback your payment may be held in a pending balance until you receive positive feedback or 21 days have passed.
Always send the item within 7 days to the address on the PayPal transaction page never anywhere else.
For items above £41.00 send special delivery, for items above about £15 send Recorded Delivery.