For the top 6-8, that's an easy fix. For when you have it set to filter the tournaments, in the overall score, you'll want to put this in: top(6, scores) . Obviously, if you want 7 or 8, you can easily change that. For a while, I was using proboards to host my leaderboard, where it was forum based much like it is here. However, I found poker-leaderboard.com, and I like that a lot better. Only disadvantage is that I have to manually enter the points in, due to the points system we have for our league, and that TD is not presently able to work with it (which is no big deal to me, I have no issues typing).
With the proboards, I took advantage of the html export, and just threw it up as it had it. Don't feel bad about being new to all of this, we all, myself included, have been new at one point or another, and even I ask questions at times - the support here's awesome!