Hello, I am thinking about vB 4.2 to XF conversion and would like to learn more about the following issues: 1) Ad serving by weight - For multiple advertisers #1, #2, #3 and if I want #1 to have 50%, #2 to have 25% and #3 to have 25% of available imprints, is this possible with built in or add-on ad manager? 2) Would vB's "Post thanks" counters covert over to XF's " like" ? This is an important requirement for conversion and is a show stopper if cannot be done. 3) Can the importer/converter preserve all vB 4.2 URLs for forums and posts? (e.g. http://mysite.com/forum/showthread.php?29089-SEO-Friendly-vB-URL ). In another words, can all vB URL be preserved after the conversion to XF? Preferrably without URL rewrite/redirect? The preserved URL, would allow all of the embedded URLs in posts to be relevant and Google will not need to reindex. Thanks in advance for your help, XF newbie.