The best thing to start is to read the TER Instruction Manual. (The first thread, 'pinned' to the top of this page.) Also read back on this forum several pages. You'll see lots of similar questions with replies. If you have more questions after doing that, this is the best place to ask them.

You can post ads on your regional ad board. Make sure you read the Provider Ad posting guidelines. You can post photos on the photo only board. If you have a website, you can link it when replying to a post, but you can't link it when starting a thread (except on the ad boards.)

Good luck!