Paid, but now it's disabled on new comp

I copied keyclone over to my new computer but I got the License Has Expired pop-up window. The "system id key" doesn't correspond with the one I got in my receipt from paypal and now, after trying to figure out how to solve this for a while, all I'm landing on is buying it again.. which surely can't be right. I'm hoping someone can help me figure out how to do this.

http://www.solidice.com/keyclone/faq.html#kc_faq_19

G'morning Rebjorn,

if you want to move your keyclone to another machine, just send me a PM with your email address and the new keyclone system-id, and i'll transfer it over asap.

if you want to use both at the same time.. then yes, you'll need a new license.

talk to you soon,

Rob