So you've imported your video but want to split the video into different parts. Try the Boilsoft Video Splitter here.
You import your footage into the video splitter and can make smaller files from your imported video footage. The program supports many file types such as AVI, Divx, MPEG-4 video files, MPEG-1, MPEG-2, VOB video files, ASF, WMV, WMA files, Real Media(.rm, .rmvb), MP4(.mp4, .m4a) files, 3GP(.3gp, 3g2) files, VCD (.dat) files, AC3 files, MPEG Audio file, mp1, mp2, mp3.