I have never done this but there is a guide that someone posted over on the UD Grid board. It looks to me like it should work here.

Here is the pointer .

Did I read this incorrectly? I thought it said that there was a faster PC at home but not an internet connection.

You could also try this

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As I understand how the grid concept work, the data needs to be downloaded to the same PC that will do the work, and that PC needs to have an internet connection.

Q. Why the need for the same PC?
A. The grid server needs to know what machine did the work and to tie-in the data that was earlier downloaded to credit the output (the machine's upload) to the machine.

Q. Why the need for an Internet connection?
A. Part of the upload contains the data about the machine. When machine_A downloads the data and machine_B does the work, and later machine_A uploads the data (using an Internet link), the server will read machine_A and what does it see? No work done by machine A! Why? well, machine B (assuming this is withOUT Internet link) did the work, but cannot communicate with the grid server.

If you want your home machine to be credited for the work it did, install (if not yet installed) the client software on that machine and hook the machine up to the Internet. You need to hook up to the internet ONLY AFTER the client software finished working on the particular earlier downloaded data.

Hope this helps.
BTW: May I suggest that you try to read in and around the World Community Grid website to get a deeper understanding of the concept.
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