We received your query enquiring about the update for SiteAdvisor from v.220.127.116.1153 to v.18.104.22.16861 . Thank you for contacting us.
1. The new build contains an update specifically for all users who have decided to be a part of our PIP program (Product Improvement Program) to support future SiteAdvisor releases. Please note that all users will get this update (v.22.214.171.12461). If the users have enrolled in our PIP program then they will be prompted for certain updates to test our beta products.
3. If you are installing manually, then both over-install would work fine. You can also un-install, reboot and re-install the new version. It would not make much difference.
4. Please refer point 2.
This release does not contain the patch for FireFox 3 RC1 since this update is only for IE. We've fixed the FireFox issue and will be releasing (separately) the patch shortly. Thank you for being patient.
McAfee SiteAdvisor Consumer QA