Reload a pages header and footer through another domain

I need to be able to load a site within another url and strip the headers and footers and replace them with our own. I am not sure if this is doable but here are the details: this is the url that we need to work with : <[login to view URL]> this site needs to loaded into another url e.g [[login to view URL]][1] and the header and footer replaced .. there are forms in the sytem also once you login but the company that provides the software refuses to brand it so we need to make a way around this .. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Web Based .. Any platform ... best to keep it on linux though