If the connection wizard in OE5 doesn't offer the Hotmail Account option or you can't choose a HTTP server in the E-mail Server names dialog box, the HTTP mail setting is probably disabled in the the registry.
Use Regedt32 to navigate to:
Double click the HTTP Mail Enabled value name in the right hand pane and change the data value in
the DWORD Editor from 0 to 1. Click OK and exit the registry editor. Restart OE5.