For those of you on AT&T One X or One XL, TWRP 2.2 is now OUT with USB mount fixed. Which means that now you can fully connect your phone as a USB disk drive in TWRP.
You can download OneXRootATT.zip again here or just the new TWRP 2.2 recovery if you already have it.
Download TWRP 2.2 (if you already have OneXRootATT just copy this over to the directory)
Then just follow Step 19 and 20 here again.