I'm using this package to add the ability to search from more fields in the address book.

Eg. Searches made by company names, nicknames, numbers, etc work

http://maemo.org/downloads/product/M...ntacts-search/
http://maemo.org/packages/package_in...-search/0.4-2/

Some people have reported it to crash their phone or contact's application, but has worked flawlessly for me.

So I recommend that you take a backup of your phone before trying to install it.