Windows 7: Office 2010 Contact search while composing email

So far I love office 2010. The only downside right now is

1. Google Sync does not work without using a hacked version of the sync software.
2. Blackberry Desktop manager needs a workaround in order to get it to work.
3. When I am composing an email and need to search a contact I must know the first name.

I am hoping there is a solution to number 3. When I compose an email to someone for the first time I usually hit Compose Email and then click on the "To" box. This pulls up my contact to search. Then I begin to type their name but it only works if I know their first name. Any suggestions on how I can just type any portion of the name and it begins to narrow it down? So if I only know the last name I can still find them.



Jacen