ok. i've done the coding for this wad manager in libwiigui. it is able to install wads, uninstall them, load any ios that you have installed ( as long as that ios supports being used like we are using it), read from fat sd, sdhc, usb ( multiple partitions).
what i have added includes (but is not limited to) installing/deleting/copying wads via wifi, 4 wiimote/ GC/CC support, scrollbars, folder browsing, blablabla. what a really need is somebody that is good with graphics. this doesn't mean somebody that has photoshop, or somebody that thinks they are good with graphics. i would like somebody that is genuinely good at computer graphics to PM me if they would like to cook up some images for me and this will be ready for the masses
EDIT>>>>>>>
i guess i could let you know the image requirements...
here are a few quick screenshots to let you know what the general layout is
http://www.mediafire.com/?0mw5btxnqww
all images dimensions must be a multiple of 4 or the image won't show up.
for image sizes that i am currently using, just look in the source of usb loader GX or any of the themes for it. the browser is taken almost straight from there. all the prompts are exactly what is in that source. i would prefer if the images for the scrollbar and browser were the same size as it takes a bit of work to change the scrollbar behavior if it is made any taller/shorter. the other buttons can be any size as long as it doesn't have a remainder when divided by 4