Homebrew Image Viewer ?

His there any Homebrew image viewer?

I know ther is one built in the PSP, but it's not very handy to view the manga I bought then scanned:

You have to zoom it to the right size, and then move the selection to the top for each page you want read.

Plus, there is this annoying blurry thing when you scroll, and you have to wait a little bit to read the text (and sometings, the picture stay blurry and you have to return to the menu and reload it).

Is there anything with some more options and a better Jpeg decompression out yet ?