the page http://www.animemusicvideos.org/search/ appears to be using hard-coded background colors in the table for the different search types, while using whatever the skin text color is. this makes things a little hard to read when using skins with light text colors. (looking at the source, I see no class identifiers in that table at all, aside from the ones used for the input buttons in the forms.)
to see what it looks like with my current preferred skin ("NightGlow"), take a look at http://bluecherry.net/~tward/a-m-v-org-search.png