Can I keep the same CRT/KEY/CERT that I was using before or do I have to get another one?
The key and cert are tied to the DNS name (CommonName in cert-speak), not the actual server itself. You can move the key and cert between servers, and you can even have the same key/cert combination installed on multiple servers to facilitate load-balanced clusters.
So yes, you can use your existing cert(s) without paying a fee or do anything more than copying the certs to your new server.
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Thanks very much! Now I have another question that hopefully someone can help me with.
I have got everything working after migrating my site EXCEPT for the SSL. I tried going in and using the same SSL cert and it wasn't working. So, I contacted Geotrust and I was able to re-issue the cert. It still isn't working.
Can someone give me a step-by-step on how to first delete what I have already done (meaning delete any certs that I have uploaded), and then give me a step by step on how to install one properly?