unzip ffmpeg and upload will not work. You need to install as per

http://docs.buyscripts.in/wiki/Ffmpeg

Better ask your server admin to do this.

vshare 2.5 do not have any change in conversion. Video conversion part is same as that used from vshare 2.1.

If video is not converting, you can get convert command from debug.txt file. Ask your server admin to run the command on the server. You can mosify the convert command to match your server if needed. vShare works if your ffmpeg or mencoder can convert video.

Refer

Video not getting converted to flv
Create Thumbnail - START