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://OWAURL/OMA
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.