I see your problem. There should be a guide around here somewhere but I sure can't find it. So, here we go!
Get contacts off of the old device first. No idea how to go about that.
Create an Outlook/Live/Hotmail account and upload the contacts there
Setup your device using the same email address as you created above
Contacts should automatically populate on the L521
the best thing is to first export ur contacts to a vcf or csv file from ur E63,
then upload the contacts to ur gmail contacts or outlook using that vcf or csv file,
then just login ur gmail or outlook account on ur lumia. everything gets synchronized..