Mac app store - repurchasing the same app??

My Mac is down, and I am re-covering fm the Time Capsule.

The question is, I purchased the Mac OS X server on Sat thru Mac App Store.

If I set the Time Capsule to Fri, and re-purchase the Mac OS X server again, do I need to pay again??

Sure not, your purchase record is on apple server, if apple charge u again, u can also call applestore for refund

Login with your account and click the Purchase on the top, then you will see whatever that you have purchased like below.