Okay...take a deep breath and relax...eBay does not always immediately list your items for sale. They go through a "check" prior to listing. You won't be able to find them through a search or by going to the category they are under. I've had this take upwards of 4-5 hours before.
First thing you need to do is to "My eBay" and select "selling". If you see your items listed under the "Active Selling" heading then you are okay and they are going through whatever check eBay does.
If you don't see them there, you need to next look under the "Scheduled" heading. It's possible you listed items and set a future date as the start date instead of right away.
If you don't find them in either of these places, the last place to check is under the "Saved Drafts" heading. Perhaps instead of you hitting "list item", you may have not completed it.
If not in any of those places, you're listings didn't take and you can try contacting eBay.
