Once you've set up OE for your hotmail, it's best to have your folder list open (View - Layout - tick folder list box). That's because hotmail has its own folders in OE (as Y2K_Phil says). Therefore you'll have two inboxes for example, one for your normal ISP mail and one for hotmail. You can click the relevant folder in the folder list to check your mail etc.
Also, when sending mail, in the FROM line of the new message window click on the downward pointing V at the right and from drop-down list you can choose which account to use to send your e-mail from.
This thread is now locked and can not be replied to.