A good addition to the guild vault was to make the items stackable... but I have noticed that the number of items it says you have is wrong because the items are staked. For example I have 1 ItemA, 3 ItemB, and 5ItemC. And my max items is 100. The guild vault will say  3/100 items. Then when I click "manage vault" it will say 9/100 items. So when they are stacked I dont think the vault counts them correctly.

Ah, well caught! I never noticed that.

Stacking the same item is very useful when it comes to reducing space but now with all the new items it's pretty clear that the scrolling feature is a little glitchy, as soon below:

What browser is that? Looks like a browser bug to me, if it actually has a scroll bar.
If it didn't have a scroll bar, I'd suspect that the CSS hadn't worked to force an Overflow boundary.

But, since it clearly is visible, I'm not sure how I've made a mistake. The browser you used may shed some light.

IE7, Safari doesn't seem to have that problem with the vault when I tried it.

There, fixed it.

However, it was an IE bug, not my own.

I set the boxes to position:relative so I could set the item numbers to position:absolute and place then on the bottom-right.