HELP ME! i cannot see any output..

capture error calling vid_start

i am using linux ubuntu 7.10. I have installed my motion software i've downloaded from https://www.lavrsen.dk/twiki/bin/view/Motion/WebHome. but now i cannot see any output grabbed from my analogue camera (using RCA connector) that i connect to my capture card. when i run my motion software, i get error.. I am beginner and i am really run out of idea how to do it...:-(
ann@ann-desktop:~$ motion [-n]
[0] Processing thread 0 - config file /usr/local/etc/motion.conf
[0] Motion 3.2.9 Started
[0] Thread 1 is from /usr/local/etc/motion.conf
[1] Thread 1 started
[1] cap.driver: "bttv"
[1] cap.card: "BT878 video ( *** UNKNOWN/GENER"
[1] cap.bus_info: "PCI:0000:06:00.0"
[1] cap.capabilities=0x05010015
[1] - VIDEO_CAPTURE
[1] - VIDEO_OVERLAY
[1] - VBI_CAPTURE
[1] - TUNER
[1] - READWRITE
[1] - STREAMING
[1] Supported palettes:
[1] 0: GREY (8 bpp, gray)
[1] 1: HI24 (8 bpp, dithered color)
[1] 2: RGBO (15 bpp RGB, le)
[1] 3: RGBQ (15 bpp RGB, be)
[1] 4: RGBP (16 bpp RGB, le)
[1] 5: RGBR (16 bpp RGB, be)
[1] 6: BGR3 (24 bpp RGB, le)
[1] 7: BGR4 (32 bpp RGB, le)
[1] 8: RGB4 (32 bpp RGB, be)
[1] 9: YUYV (4:2:2, packed, YUYV)
[1] 10: YUYV (4:2:2, packed, YUYV)
[1] 11: UYVY (4:2:2, packed, UYVY)
[1] 12: 422P (4:2:2, planar, Y-Cb-Cr)
[1] 13: YU12 (4:2:0, planar, Y-Cb-Cr)
[1] 14: YV12 (4:2:0, planar, Y-Cr-Cb)
[1] 15: 411P (4:1:1, planar, Y-Cb-Cr)
[1] 16: YUV9 (4:1:0, planar, Y-Cb-Cr)
[1] 17: YVU9 (4:1:0, planar, Y-Cr-Cb)
[1] Test palette YU12 (352x288)
[1] Using palette YU12 (352x288) bytesperlines 352 sizeimage 152064 colorspace 00000000
[1] found control 0x00980900, "Brightness", range 0,65535
[1] "Brightness", default 32768, current 32768
[1] found control 0x00980901, "Contrast", range 0,65535
[1] "Contrast", default 32768, current 32768
[1] found control 0x00980902, "Saturation", range 0,65535
[1] "Saturation", default 32768, current 32768
[1] found control 0x00980903, "Hue", range 0,65535
[1] "Hue", default 32768, current 32768
[1] found control 0x00000000, "42", range 0,0 !DISABLED!
[1] "42", default 0, current 32768
[1] found control 0x00000000, "42", range 0,0 !DISABLED!
[1] "42", default 0, current 32768
[1] found control 0x00000000, "42", range 0,0 !DISABLED!
[1] "42", default 0, current 32768
[1] found control 0x00000000, "42", range 0,0 !DISABLED!
[1] "42", default 0, current 32768
[1] found control 0x00000000, "42", range 0,0 !DISABLED!
[1] "42", default 0, current 32768
[1] found control 0x00000000, "42", range 0,0 !DISABLED!
[1] "42", default 0, current 32768
[1] found control 0x08000000, "chroma agc", range 0,1
[1] "chroma agc", default 0, current 0
[1] found control 0x08000001, "combfilter", range 0,1
[1] "combfilter", default 0, current 0
[1] mmap information:
[1] frames=4
[1] 0 length=155648
[1] 1 length=155648
[1] 2 length=155648
[1] 3 length=155648
[1] VIDIOC_QBUF: Device or resource busy
[1] ioctl(VIDIOCGMBUF) - Error device does not support memory map
[1] V4L capturing using read is deprecated!
[1] Motion only supports mmap.
[1] Capture error calling vid_start
[1] Thread finishing...
ann@ann-desktop:~$