Hey, I'm working on setting up a 10-tier affiliate program for my site but I had a question about the links my affiliates would use.

The way I was hoping to set it up was to have the affiliates add '?THEIR_ID' to the end of whatever URL of our site. ex. http://www.site.com/?1234 or http://www.site.com/?myaffiliateid

My question is:
When all these affiliates setup these links, will google pick them up as links directly to www.site.com or will they consider the "/?xxxxx" part of a different URL/separate pagerank page?

If the latter, I was thinking about setting up a 301 permanant redirect for any URLS like "www.site.com/?xxxxx", that would redirect straight to www.site.com ... if I did this then, if not in the first case, would google count this as a valid incoming link to www.site.com ?

Any help would be great!

Thanks!

That's quite a good question. I know Google indexes dynamic pages seperately (a feature that sets it apart from most other search engines), but I don't know if it counts each pagerank seperately. So I can partly answer your question: yes, Google will pick the links up seperately. However, I do not know if they will each contain their own PageRank--I am fairly certain that they won't, but I wouldn't stake my life on it.