Is It Possible To Modify Report Builder Template ?

Hi

I would like to be able to modify the basic report template offered by Report Builder , so as to be able to include custom fields that I would like to be present in every report (Company name , Logo , Date , etc) to achieve consistency in the presentation of the reports created with Report Builder

In Bob's Blog he explained how to include RDL expressions in Report Builder
http://blogs.msdn.com/bobmeyers/archive/2006/03/26/561147.aspx

What I would like to do is to use that technique (if possible) to modify the original template or templates offered by Report Builder to include my own fields.

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I will appreciate some comments or suggestions about other approaches that can be used to address the issue mentioned in the first paragraph .

Thanks in advance ,

George