Samsung Trasform also knows as Samsung SPH-M920, model code : SPH-M920ZKASPR, carried by: Sprint & Verizon Wireless US (CDMA 20001x, EV-Do Rev. A)-based. Here are the link to download its USB Driver and the manual in .PDF for Samsung Transform:
Device(Install),USB Driver (Software) (ver.1.3.350.0)
15.23MB - English - Win XP/Vista/Windows 7
link : http://downloadcenter.samsung.com/content/SW/201010/20101026044755031/SAMSUNG_USB_Driver_for_Mobile_Phones_v1.3.350.0.exe
You can aslo download the manual:
User Manual (User Manual) (ver.F6),File Size :10.78 MB - ENGLISH
Link : >> http://downloadcenter.samsung.com/content/UM/201010/20101015042729125/Sprint_M920_Transform_English_User_Manual.pdf
All the links were taken directly from Samsung official support page.