Is this the same Oline that gave up 30+ sacks last year?
Not quite. Three starters return: LT Ed Wang, LG Sergio Render, and RT Blake DeChristopher. New are C Beau Warren and RG Jaymes Brooks. Warren has several starts to his credit over the last couple years, and Brooks started in the Orange Bowl last year after former starter Nick Marshman was declared academically ineligible.
My personal opinion is that moving Render to LG and replacing C Ryan Shuman and Marshman with Warren and Brooks will prove to be an upgrade in 2009. Nick was big and very strong (6'5", 340lb, 700lb squat) and was a force going straight ahead, but struggled to block in space. Brooks is a little smaller (6'2", 300lbs) but is nearly as strong and is more athletic. I think he'll be just as good at run-blocking and will be better in pass- or zone-blocking situations where he's required to move laterally. It will be interesting to see if we open up our splits any as a result. At C, Warren has apparently put on some weight so size-wise he's identical to Shuman (6'3", 290). Of course he's still giving up 50+ lbs to T Cody, so that's an obvious area of concern. In any event, I still say that this year's line will be better, particularly with Wang and Render together on the left side.
Another important factor is the aforementioned "starts" stat. Combined, those five guys have 100 starts between them, and all that game experience can't but help... assuming that we avoid any more serious injuries, of course.

_frown:
Is this the same TT that threw 7 interceptions and only 2 TD's last year?
Yup. You can decide for yourself how much of that you want to attribute to an OL that wasn't very good at pass blocking and a bunch of freshman receivers. Or you can assume that Tyrod's just not any good. Your choice.
I will say, having (re)watched the UA vs. OM game last night, that I think that you are underestimating your vulnerability against a mobile QB. Snead made several key runs that kept drives going in the 2nd half. You could argue that Tyrod wouldn't have made all of the throws that Snead made, which ALSO helped keep several of those drives going, and you might well be right. But Tyrod doesn't have to actually run to affect the game with his feet... the mere threat of him breaking contain and taking off will likely open things up, especially in the middle, where we will have a trio of experienced TEs working. And when he does take off and run, IMO he's going to do a lot more damage than Snead did.
I know, I know, that was last year's team, it was just one game, you guys had an issue with finishing after jumping out to big leads, you woulda knocked Tyrod out in the first half, etc. And obviously as VT fans we want to see Tyrod pass more and run less, but I'm just sayin... you can boil it down to "2 TDs and 7 INTs" if you want, but there's a lot more to it than that IMO.
Can these two runningbacks run over Mt. Cody, Hightower, McClain?
Those three are formidable, and better yet, they're proven. With DE out, none of our RBs have any significant game experience. So anyone who claims to be able to answer your question EITHER WAY is selling something.
But I'll turn that around on you: David Wilson ran a 4.33 forty. If he gets loose, can any of those three guys catch him? Even Arenas isn't that fast, and trust me, you do NOT want Arenas being forced to tackle David Wilson on a regular basis.