It's not necessary (at least with Apache and Xitami) to have "?" as the
CGI parameter delimiter - for example some Wiki clones (Wiki, Twiki, search
for it) use some feature
of Apache that allows to insert the script in the middle of the url and the
rest of the url path passed as the first parameter (like
http://www.nowhere.com/view.pl/01/0101/ ). This would trick
spiders into crawling your site, but maybe you should consider
making a direct submission/update to spiders instead of having them crawling your site.
I don't know if this is actually possible, but ebay.de shows up quite up-to-date on google.com.