How to update webcam driver?

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https://bbs.archlinux.org – I've latest ArchLinux installed with v4l-utils 0.8.8-1 and gspca_zc3xx webcam driver v2.13.0 . The driver is installed as a kernel module, and I can detail it with  modinfo gspca_zc3xx command. This driver version is now outdated, and it doesn't support correctly Auto Gain and Exposure controls in my webcam Logitech Quickcam Communicate STX. On the developer's site in Webcam GSPCA driver V4L version 2 section there is an updated version of this driver v2.15.18, and I found the thread gspca_zc3xx possible options in Mint lxde 12? claiming the above issues were fixed in it.Ca (HowTos)