Do you have to have to have a eBay account to buy stuff from eBay?

Yes

Yes, you can.

Click on the picture of the thing you want to buy.

Yes

1) Search for the item you want 2) Look at how you can pay for item (paypal is the most common, credit card, bank transfer, money order, cheque etc.) 3) Place a bid 4) Update your bid if you get...