This is a WWAN driver pack made by Sull86 of micropctalk.com.
It contains drivers for the Cingular WWAN module present in the USA models of the VAIO UX.
The file is mirrored on my site. All credits go to the original author!
Original file source:
http://web.archive.org/web/20130814235047/http://www.micropctalk.com/files/windows-xp/driver&application-packs/WWAN-Pack-v1.2.rar