I suspect that most of you are already fairly adept at finding information on this site. I've put together a brief road map for those of you who are having difficulty finding information. I have also explicitly exposed links to pages to make bookmarking and/or copying them easier.
Apply the filters as appropriate (e.g. Product: Integrity; Reported Release: Integrity 10.2, etc.). As always, if you are unsure of something, it is likely better to leave a filter unset (e.g. User Role: All User Roles). Unlike the Legacy MKS website, this site actually lists all the results in line, so you can then use your browser's search functionality to look for a particular string—the keyboard shortcut is usually 'Ctrl-F' (e.g. search for 'Tuning').
Tracking Existing Cases
On the Integrity Support Portal <http://www.ptc.com/support/integrity.htm>, under 'Popular Tools', there are also links to track existing cases <https://www.ptc.com/appserver/cs/track/casetracker.jsp> If you run into a problem you have already dealt with on a previous case, you can view the cases you have opened or cases opened by your organization by clicking on the appropriate tab. By default, the view opens up with a list of the cases that you have opened in the last six months.
It is also possible to open a particular case by entering the case number in the search box at the top, and clicking the search button.