Yes, as Ben says, its support for Windows XP and above.
Thanks for the additional information fuzzi, the narrow column widths are just the way it has been designed. I'm pretty sure there is a ticket in roadmap to get this looked at, even if it's just reducing the font-size of those columns so more text can fit.
I'm not sure about the "muddled" issue as I would need a screenshot to compare with and review, however, Chrome in Edit+ 1.5.0 is supported and haven't had any issues in the past. The only issue with the columns being all over the place has been with IE and it being rendered in compatibility, quirks or IE7 mode and/or having non-default zoom levels set.