shift a localhost site from webrick localhost:3000 to apache2 passenger localhost/redmine or redmine.localhost

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http://serverfault.com – I have installed application called REDMINE on my localhost, using ruby on rails. It is accessible webrick script through localhost:3000, on my PC! Now I want to shift to apache2 passenger, I tried everything. Every possible link of redmine, but couldnt get it running through passenger! I installed passenger and all dependences, but still when I set virtualhost and in that put RailsBaseURI or RailsEnv etc the apache rejects it. And apache doesn't say there is some misspelling..... What do i have to do? How to configure it so that this ruby rail app can be accessed? Sorry but I tried setting (HowTos)