report display

Would like to get code to display the project report for a
particular period in ruby on rails.

Sure. Why not?

Serious, my tarot deck is in the dishwasher and my I Ching is broken,
so I guess:

Two models, project and reports
has_many :reports

@project = Project.find( of whatever project you want...)
@reports = @project.reports.find(:conditions => ["created_at <=
'#{8.weeks.ago.to_s(:db)}' AND created_at > '2008-01-01 00:00:00'])

could be somehow what you're looking far.

Otherwise tell us how your project looks like and what exactly
you want to do...