Upgrading Exchange 2k3 Std to Enterprise – How to increase storage limits?

hello all,

My company uses Exchange 2003 Standard and we have now reached the 16GB maximum; it’s causing our email to crash! We’ve upgraded temporarily using a trial version of Exchange Enterprise, but we’re still stuck at the 16GB limit?? is there something else we need to do in order to increase the storage after upgrading to Exchange 2003 Enterprise?? Please help!

Thanks in advance,

Wayne