can you see the "minimise, Maximise, Close" buttons in the top right hand corner?.
if not then you need to reduce the size of your screen until you can. it may be that you opened outlook express in a larger resolution than you use now and outlook express opens to the old size by default.
try double clicking the Blue title bar and see what happens.
if it fits into your screen and you can see everything then its a simple step to change things, post back if it works and i will go through it with you.