How do I start advertising on here? What are the first steps on getting started? Thank you to anyone who can help out!

which is linked on this page. It has a section on posting ads, and lots of other good information on how TER can help you.  

top of the screen.  Read it carefully as if you were going to take an exam on it.  Also, read several pages here on the Newbie board; you will see many of the same questions get asked about every 6 or 7 days.

...Click the link below. I think you'll find the info helpful.