Moving GP install to new server

I need to migrate GP 2010 to a new server. However, we have a lot of customizations which need to be migrated over as well. I am hoping to copy the existing install of GP 2010 on existing server to new server, which will have all the customizations.

I am a newbie diving into GP 2010. I would greatly appreciate if someone could share some information with me regarding my issue.

Thanks.

Asif