Leo Keychain Access / Certificate problem


Does anyone know how to install / request certificates properly from a Windows 2003 Certificate Authority?

Since there is an open standard for certificates, the request I did in the Keychain > request new certificate, doesn't do anything in windows when I bring it over. I want to use a RADIUS server with certificate authentication. Everything works on a windows box, just having problems with the mac seeing my root certificate and requested ones.

thanks, any help is appreciated!