Two Problems: Images don't resize to Large; Comments have no hyperlinks

Hi all,

My site is here.

Problem #1 –

My standard layout is to have a Large picture (620px wide) at the head of the post, usually resized down from a huge picture.

Problem is that while the Editor allows me to resize to Medium or Thumbnail, for whatever reason it doesn’t let me do that for Large (unless its a PNG file). The button for Large is filled up with blue and not clickable.

It’s nowhere near a catastrophic flaw (I can resize manually) but very inconvenient and help would be appreciated.

Problem #2 –

This is a long-shot, as it depends on the Theme I’m using…

Basically the comments have no hyperlinks in them (e.g. see here. You can’t link to a specific comment.

Is there a short-cut to adding these hyperlinks by editing the Theme files?

Thanks in advance.