If you want to compare all the items in a project, viewing different baselines, your best bet is to use a Custom Report.  Here is a link to the guide we have on how to create those .  Contour uses a tool called BIRT to do custom reporting.  It's a way to customize a query for your database, and then display that in various formats (HTML, Word, PDF, Excel, etc.).  I am guessing that you want to print this out.  Let me know if am I on the right track here. 

Currently we do use custom reporting for all baseline comparison.  They allow you to enter any two baselines and compare them, or compare any baseline to the current item.  We are looking to get this feature into Contour without reporting at some point, but the custom reports are a solid solution for now.  We can talk more about the custom reports and how to integrate them if you would like.  They are a useful tool in showing what has changed throughout a project.

One question that has come up for me in writing these reports, what exactly are you trying to see when you look at what has changed?  The idea of watching a project grow and change is a concept we are very interested in, so it would be interesting to see exactly which types of fields matter the most.  For example, are you mostly interested in seeing status changes, or are any changes throughout the item of interest to you?