Please link to a redirect page that isn't working properly, that was working properly before.
Please remember that some redirects that worked before (e.g. [REDIRECT]Page Title[/REDIRECT] when you mean [REDIRECT]Prefix:Page Title[/REDIRECT]...) The fact that they worked was a bug (even though it didn't seem like it) and that bug is fixed in VW4. If some redirects were created expecting the bug, then they will need to be edited so that they work as intended.
For the QUOTE emails, I guess my question is: When the QUOTE in the email contains other BB-Code tags like bold or a link, does it show as raw HTML, or does it show as nice text?