Urgent - Migrating Reports From Dev To Test

I new to Cognos, while someone away sick. I have few reports created in Report Studio that must be moved from Test to Dev environments. Framewrok manager model not changed, just the look of reports…
How do I migrate reports across? Have read user guide, but not simple instructions. Do I export/import whole framewrok? Which software application I use…FM? Can I just copy across files from 1 server path to another? Do not want to move content store as many reports in here, just these 5 reports with look and feel changes need to migrate, but VERY VERY urgent, must move today. Pleese help!! Shee.

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