Thank you very much for all your work with postLoader4. It's really appreciated.
Having said that, I've discovered a few bugs in b14.

It doesn't seem that filtering works on the Channel/Wiiware page; specifically, on my usb://nands/pln2o/ I have it set to filter out "Standard Channels" and HAAA, the Photo Channel, etc still show up. Also, I've noticed that your sort algorithm is a little broken. Specifically, it always seems to swap the first and last item of each group; so, I have "zerace" as the first item and "3D Maze" as the last item on the Homebrew page.
Also, out of a bit of curiosity, do you intend to include support for cover support for gxgeo, mame, scummvm, or wiiengine in the future? I presume that that'd be a good bit of work to maintain, so I can understand being reluctant to do so. I would say, I do like the idea of folder browsing so one can have subfolders for roms and perhaps even a "root" folder for different systems, but another idea would be some sort of tab option to switch between emulators. As it stands, I know it's a little confusing having them all mashed together. And having some sort of tab to swap between Wii/GC games makes a little more sense than having a separate button at the top like its its own separate page; by that, I mean it's confusing that selecting Wii swaps what "up" jumps to and that's non-obvious--other than that, I really like having the autohiding top/bottom toolbars as I think those are more obvious overall. :/
Whatever you think is best, I'm sure will be good. I'm just throwing out ideas.