How do I eliminate a "Topic Review" from being shown? 

I've also tried to setup groups like "Members" and "Moderators" to send PM's to and It's not working. Is there some kind of "how-to" on setting them up?

I really do not understand your second question (groups).

Let's say I want to send a PM only to "members only" or "Moderators only". I'm having issues setting up those groups.

You just have to create the groups then when you send a pm to a group use the group drop-down menu on the page.

Thanks. I'll try it that way. Resolved.

There is a limit now on sending pm's to groups that have over 1,000 members.

This is a fairly new forum (Forumotion). It's not going to reach even 50, anytime soon. 

Is there any specific site where I can get "how-to's", as there are a few things (modifications) I want to do with my forum. i.e. mobile view setup, etc...

Also considering adding a new forum within my current news Godaddy.com website. I'm quite impressed with Forumotion. Thanks for your support.

FAQ - https://help.forumotion.com/t59451-frequently-asked-questions

Tips & Tricks - https://help.forumotion.com/t61210-list-of-tricks-tips

Thank you very much for your time.

You're welcome.

Do you still want to remove the topic review from pm's?

Yes indeed.