How to add Notes 7 client to Vista Ultimate with Notes 8 already there

Hi,

I have Notes 8 client installed and have had it for some time now. I would now like to install Notes 7 as well, as I need to do development for a Notes 7 environment.

Im new to Vista. Can someone advise on the installation procedure so that I have both clients co-existing on a Vista platform? Notes 8 will be the primary client.

Thanks.