H1 tags

I use a script called vBTube ( video addon for vBulletin ) and my video categories' names are the names of singers whose name I want to earn a high ranking for as a keyword. As you can see, each performer's name is placed above its video list ( after entering the category ) using 'Font Size' and 'Bold' tags. I am wondering if it would be ideal to use h1 tags instead.

See here for example:
Randall Wong Videos

It probably would be better, yes. I used CSS to make the H1 smaller than standard. Any replies are h2.

Also, I really like how you have that forum laid out! That's unique.

Thanks .