Just got this installed. For anyone else who encounters the same "oh s#!t" hour I did, don't try doing this with a windows machine (or at least Windows 8.1). The conventional wisdom says to use Firefox with the emergency flashing technique, as other browsers may corrupt the file. Firefox didn't work on Windows, but no problems with FF on linux. You'll know you've successfully flashed when you get a message confirming the flash (as opposed to suddenly losing connection.)
Also, the web manager interface will be in Mandarin, so you may need to change the language to English. If so, you're going to wan to look for a menu item in the Administration/Admin Access page. The labels for which, of course, are in Traditional Chinese. The weird thing, though, is that after the initial flash, the default skin is the typical Tomato sin. However, the skin that is automatically selected to be applied is "darkknight_asus", which, even when Traditional Chinese is selected, nonetheless has English menus. I mention this because, theoretically, if one is desperate to change the language, presumably one could just go through each screen and select "Save", and it would eventually change the skin. However, find the right screen using the following tips:
1) Administration Menu is the menu item right above "About", which will give you an English page describing the firmware, and is 5 menu items up from the bottom;
2) Administration has several sub-menus: the one you want is the first one, which is Admin Access;
3) On Admin Access, there are several headings, with "Web Admin" at the top, and "Password" (where you can change your password) at the bottom (and some stuff in between);
4) As I said, you should see the "darkknight_asus" skin in English;
5) The little subsection you're looking for is labeled 語言 (language);
6) In the little dropdown menu, select the FIRST entry (sorry, can't cut and paste it)—that's English;
7) Hit save and you're all set.
My only questions for the developer/porter, 1) is there work on porting to Shibby's latest? I ask, because 2) I can't get my usb flashdrive recognized. At first I thought it was my crappy 8gb kingston, but then my trusty sandisk didn't work either (that one is useful, as it lights up when it gets power—and this one didn't.) Anyone else have trouble with usb?