URL re-write, Shared SSL & SEO

[janimal]

Hi All,
I inherited a site a while ago which has the following architecture..

www.thesite.co.uk <- the main homepage & info stuff
www.sharedsslurl.com/domain/catalog/ <- Online catalog

I took over after this was setup & took over population of the online catalog.

Now I am redesigning the homepage to be tableless CSS, xhtml. I use PHP to generate the site & mod-rewrite to provide friendly URLs

I have just created a rewrite rule so that links to the catalog from the main page use friendly URLs so the link
www.thesite.co.uk/medical/sterilization.html
goes to http://www.sharedsslurl.com/domain/c...ilization.html

Obviously the browser shows the sharedssl url when it lands on the page.

Now for some Questions...

1) How do search engines index the rewritten URLs? - ie would they be listed in google as www.thesite.co.uk/medical/sterilization.html or http://www.sharedsslurl.com/domain/c...ilization.html

2) can I use a rewrite rule on the sharedssl domain (assuming it is correctly set up) so that http://www.sharedsslurl.com/domain/c...ilization.html is displayed as www.thesite.co.uk/medical/sterilization.html?

I suspect it is not possible to do No 2. but would welcome any thoughts...

I think ideally for SEO the bulk of the catalog should be on the main site url & only the checkout pages on the SSL domain - and will probably aim to move to that at some point in the future.


Thanks
Janimal