i don't have an 8830 so i have no personal experience installing it on that device. However, i don't think there would be any issues installing and using Drive Safely on the 8830.
i have this app on my 9630 Global BlackBerry and it's awesome!
Maybe check here for more specific info: For detailed instructions and frequently asked questions FAQ , visit: http://www.DriveSafe.ly/faq
If you install it, report back on how it's working for you!