Nested comments being displayed..

So I'm checking out the updated Nebula theme, and I'm liking it so far! Only one problem, it's displaying nested comments in threads, which is messing up the layout. Is this supposed to happen? Because it looks quite broken.
Also, for some reason Usernames aren't being displayed properly either.
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Nope, there is no support for nested comments. Can you send me a screenshot so I can fix?
[Sorry for the delay in replying. I was out.]
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Could it be caused by large avatar sizes? We use 150x150px on my forum, and that appears to mess up the layout significantly. I actually have the same problem with other themes.
Will post screen in a sec
Please check with latest theme here https://docs.google.com/file/d/0B1soC4LSXgt2a1pHZGRJRjdSMjA/edit
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