I'm having trouble understanding which part of the product does what. I'm in a trial with three components, including whichever component was the source/reviewy component - Crucible? I can't see how to clone my hg repository to atlassian, or even any mention of hg anywhere. Please help!
FishEye and Crucible only integrate with the built-in Subversion repository in OnDemand, unfortunately you can't hook them up to an external repository of any sort.
Since you're using Mercurial you can use the JIRA DVCS Connector to connect to repositories on Bitbucket, which will give you linking between commits on those services and JIRA issues (in the "Commits" tab when on JIRA's view issue page), but you don't get the FishEye code browsing or Crucible reviews functionality.
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