Hopefully this will be useful?

Parts needed: These were an eBay purchase / $75 for the pair.

[1] Pair of tow hooks (chrome one's shown) w/mounting bolts.

http://i15.photobucket.com/albums/a361/NQZTOR/YD%20VALI/techelp/pic01.jpg
Note the "R" and "L" markings. They are actually the on the bottom side of the tow hooks. That is, they face downward when installed.

Tools recommended: (no pics, sorry)

19mm open ended wrench (for front bolt)
19mm closed end "ratchet type" wrench (for front bolt)
19mm socket/wrench (for rear bolt)

The install:

Unless you have long arms (ie to be able to reach underneath the bumper up to where the hooks bolt on) .. you'll want to

[1] slide the font bolt through the tow hook opening
http://i15.photobucket.com/albums/a361/NQZTOR/YD%20VALI/techelp/pic02.jpg

[2] slide the tow hook through the same opening
[3] push the bolt through the bolt hole (of the tow hook) in to the frame (the hole is already threaded) .. and finger tighten it.
http://i15.photobucket.com/albums/a361/NQZTOR/YD%20VALI/techelp/pic03.jpg

[4] use the open ended wrench till the bolt clears the bottom portion of the opening
[5] get under the bumper .. thread in the back bolt - holes should line up.

http://i15.photobucket.com/albums/a361/NQZTOR/YD%20VALI/techelp/pic04.jpg

[6] use socket / wrench to tighten
http://i15.photobucket.com/albums/a361/NQZTOR/YD%20VALI/techelp/pic06.jpg

[7] use closed end ratchet wrench to tighten up the front bolt

http://i15.photobucket.com/albums/a361/NQZTOR/YD%20VALI/techelp/pic05.jpg

Note: Only "L"eft side is shown. Repeat the process for the "R"ight side.

Thanks for the installation procedure. Looks great by-the-way.
Mine came standard with tow hooks, in black, though.:)