You can check out this blog post for how to get it to open in a new window, but the real challenge is that because you are using URL Access to call the report you have build the whole URL string including parameters. It can be done, it is just a bit of a pain.
Jack Corbett
Consultant - Straight Path Solutions
Check out these links on how to get faster and more accurate answers:
Forum Etiquette: How to post data/code on a forum to get the best help
Need an Answer? Actually, No ... You Need a Question