Looks like nobody else is having the same experiences you are. Outlook 2007 changed its rendering engine to use Word's layout engine. You can make Outlook 2007 "render in a browser", but the email client will slug out before you get that option.
Something you can do is use a report publisher to publish your reports to disk (instead of email) "within the ipMonitor wwwroot" (or within an IIS wwwroot) and have that saved. I would save it to a specific location and have it always overwrite.