IE6.css is not added to the page

Before:
<!--[if lt IE 7]><style type="text/css" media="screen">@import '

After:
<!--[if lt IE 7]><link type="text/css" rel="stylesheet" media="all" href="

This looks fine for me. Its been a while since debugging IE6, but I do remember it being fussy about how stylesheets are added.

updating tags

Applying the patch, makes following lines now show up in the head section:

Without the patch, these lines are missing (probably because of the wrong key used in seven_process_html() for $vars)

@rickvug yeap, the css works just fine that way.
The problem was the incorrect path to the css, plus there was no html.tpl override to add the $ie_styles var.

This patch fix this issue.

How I long for the day I can mark this issue "by design"... :\

That code's a bit hard to read with all the various "\n"s in there, but I confirmed that that's how Garland does it as well. The exception was that Garland uses path_to_theme() instead of drupal_get_path(...) so I switched that.

Committed to HEAD. Thanks.