The problem with that build is that it's obviously a level 80 spec. You should be around 58ish when you leave the starting zone, and you don't even have Obliterate at that point.
This is how I leveled my DK, leveling as Blood is easy as cake, but it takes a little bit more than 48 talent points.
You go frost until you're done with Nagrand. Howling Blast when it's on Killing Machine is pretty much a LOL mode, and it gives you time to get some extra skills that really shine with Blood.
So, I'd work off that and once you hit 65, go with something like this, since I think it's apparent you want those massive Obliterates:
Blood at 65 Fill it up to this by 75:
Blood at 75 And finally, when you're at 80:
Blood at 80 Working off of something very similiar to that (damn 3.1 links...) I had very little problems leveling at all. My only deaths came when I got into "LAWL I'M A DEATH KNIGHT!" mode and wandered into group quests that were a bit over my head.
Rune Tap is nice to have, however, by level 70 you won't even need it since you'll have Rune of the Fallen Crusader, not to mention with the Glyph of Raise Dead combined with Death Pact gives you a free heal. Depending on your tastes, you get get 1 or possibly two more free heals (One being if you go Draenei, the other being if you go Herbal).
As far as gear, well, get that polearm out of Ramps ASAP, it'll serve you until the Ring of Blood Axe, which will work fine through Borean Tundra. Then the event thingy in Zul'Drak will give you a nice Axe that should serve you well into the early parts of level 80.
As far as not going with certain talents, in particular that obvious absence of Dancing Rune Weapon, you simply do not need it for leveling. I found it to be a bit gimmicky, and I never really used it. As long as you know when to put Death Strike to good use, you'll be fine.
Edited, Mar 17th 2009 3:20am by a very tired BillyRayValentine Edited, Mar 17th 2009 3:20am by BillyRayValentine