Will this fit my 5-lug?

I'm a long time lurker of tacoma world, and I have a question that I can't find the exact answer to. I have a 2006 5-lug and I'm looking to upgrade my wheels/tires from those puny stock steel rims and tires. I'm just looking for something more aggressive for my truck. First, will these wheels fit on my truck? Is the 4.5 inch backspacing the number I'm looking for? Also, will these tires fit on this wheel, even though the wheel says it is 8 inches wide, and the tires say 9.5 inches wide?

Wheel: 15 x 8 Rock Crawler steel wheel with 4.5 inch backspacing
http://www.4wheelparts.com/PDT63532.aspx

Tire: BF Goodrich All-terrain T/A, 30/9.50R15LT, total diameter, 29.9 inches.
http://www.4wheelparts.com/prodDetail.aspx?partNo=BFG50534

Thank you in advance for any replies... I think this is a setup that will work, but I just wanted to check with the wheel gurus to make sure that this is a plausible setup. Thanks again!

 

Thanks for the reply... I know I'm going to have to take that little box of molding out, but thats ok. What is the backspacing on your new rims, if you happen to remember?

EDIT: Also, if I were to go to maybe a 15x7 rim, would the tires still fit on the wheels?