"Didn't Work" is a bit vague.
It appears that the cert did get installed, but it just wasn't work when you try the site without the "www".
Certs require the common name match the hostname & domain name typed into the browser exactly or you'll get a name mismatch error but the cert will still protect the site.
And I'm not sure what you mean by "Request Info" as there's nothing called "Request Info" on the screen.
Do you mean the data you typed in to request the CSR?
If so, then no, that doesn't have to be kept.
What has to be kept is the private key, and that's always kept internallly by the system, and usually externally on the screen.
For the future, our certs are functionally equivalent to RapidSSL certs and are produced by GeoTrust; the same folk who produce the RapidSSL certs. See our announcement in the 3rd-Party sub-forum
here.
Jeff