i have the same problem, and similar hardware as the owner of this thread...
im running a 12.1 LCD with touchscreen in my car, running 800x600 resolution, with winamp as the media player...
now, i can double-size the player, and with winamp 5 ive managed to make the "add, rem, misc" buttons on the bottom of the playlist larger using the "wasabi_player" which-by the way, loads slow as hell, but its the damn playlist scroller on the side, that ill be damned if i can make it bigger...(sorry bout the profanities-long frustrating nite with this)
it really wants to be about the same size as the other buttons (being doublesized)
someone, must know how to tweek that? but ive noticed almost every skin has simply recycled or recolored the same tired buttons, so were stuck with the same sizing...ugh!
anyway, if i knew the first thing about skinning from scratch i would, or will make one...but, i figured there is a value somewhere i can edit...anyone know the answer?