Welcome to TER! I'm not sure about your first question, but as for your second question I can help. You post pictures on the photo only board and on your cities ad board. You have to use a image sharing site, like for example imagecoast (which is a platform that creates URL's to your picture). If your looking for clients make sure to make your ad once a week, and make sure to post on the photo only board. Hope that's helps!

TER won't let you link your reviews from another site. You can't even start your own profile here, you have to wait until somebody reviews you here and then claim your profile. That first reviewer will provide a link to at least one of your ads or sites, and maybe your phone number or email. That first reviewer will also select a bunch of options to describe you, including approximate height and build, age, hair color, etc. Once you have claimed your profile here, you can report any incorrect information on your profile.

...no. You are not allowed to link anything from the other site where you have reviews because having reviews makes it a competitor of TER. TER doesn't allow links to or mentions of other review sites.

 
If you have an ad on an ad site like Eros you can link to it when you post an ad on your TER regional ad board. You can also link the Eros ad (or whatever ad site that doesn't have reviews) to any reply to a post you make here on TER. You are not allowed to post a link to any of you ads or contact info in a post that begins a discussion.  

 
You need to read the first post at the top of this page TER's Instruction Manual. I've linked it below for you. Reading all of it will be a good start for figuring out how TER works.