Alternatively, you can use OMA (Outlook Mobile Access), if your company is running Exch2K3 and doesn't have OMA disabled.
To access, go to one of the following: http://OWAURL/OMA
or if using SSL encryption https
If you get the warning about your browser not being supported, just select "Ok, and do not warn me again". Arguably is itsn't pretty, but it does work.