Couple of things: the 1440 block wait is the wait time until your 4 NXT became eligible to forge (staking, in other words).
You can spend the little bastards after one confirmation/block........

NXT is a brain wallet, so passphrase=account.
If you get your passphrase wrong.....you open a different account.
As an example:
The passphrase "EvilDaveisaplonker" opens the Nxt account NXT-UQWX-5WEP-J5W2-DRD7V
but "EvilDaveisapl0nker" opens NXT-BRRS-L7XK-UADM-34428

What has probably happened is that you've stored your passphrase incorrectly
(if you're copying and pasting out of Word: don't!  Use NotePad instead....Word tends to add some extra linebreaks)

If you want to try out a Nxt demo, go here:
http://www.peerexplorer.com/
Click on the 'resolved IP' of any peer with  'open API', then choose 'Open Wallet GUI' at the bottom of the page.
You are then on the log-in screen of that Nxt server.......play around, for example by using the above 2 accounts.
Do not use 'real' account passwords on an unknown Nxt node/server, btw, there is a theoretical security risk.