Ok I managed to get something from the thumb script:

Before - ffmpeg_movie(1.wmv)

file name = 1.wmv
duration = 4.433 seconds
frame count = 66
frame rate = 15.000 fps
comment =
title =
author =
copyright =
frame height = 240 pixels
frame width = 320 pixels
has audio = Yes
get pixel format = yuv420p
get pixel aspect ratio = 0
get video codec = wmv2
get audio codec = wmav2
get audio channels = 1
get bit rate = 166179 kb/s

After - ffmpeg_movie(1.wmv)
Before - video_to_frame
Total Frames: 65
object(ffmpeg_frame)#3 (1) { ["ffmpeg_frame"]=> resource(3) of type (ffmpeg_frame) } GOT FRAME

Fatal error: Call to undefined method ffmpeg_frame::toGDImage() in /home/www/video.knightspeed.com/htdocs/vshare_test/thumb.php on line 64

What does this mean?