First of all I would like to say welcome to the Forum.
In response to your questions:
1. Click on your name on a thread and go down to other posts by this member or you can go to search and type in your name. It will say there is no posts matching this because it is supposed to be keywords but on the page it brings you to there is an option of searching posts by member you can just enter your name in there and all your posts will come up.
2. Under the Members list link on the navigation bar and then you can search for mods. Unless there is another way that I don't know of you could just click on the post count section to make it go from most to least since most of the mods have a fair amount of posts and then any name on that list that is bold is a moderator.
3. You did a fine job by asking, we are here to help...