Since you are a newbie just browse and read for the first month or two. You will understand how things goes after you do that.
If you have a question, try using the 'search' option. If you can't find the SP, probably because she is new or whoever saw her don't want to mention her, which means she hasn't been reviewed and if you want to you can TOFTT.
Your posting habits and comments will determine your reputation/credibility.
Asking about BP SP's is usually frowned upon since BP is already a hit or miss.
It is just better to visit providers/agencies that are listed/reviewed on TERB anyway.