mashim, the mencoder installed on your server is not able to convert .rm files. You need to get your server admin check and fix the mencoder problem.

Code:
/usr/bin/mencoder '/home/shiatube/public_html/video/movis_01_2.rm' -o /home/shiatube/public_html/flvideo/1188008207779339874.flv -of lavf -oac mp3lame -lameopts abr:br=56 -ovc lavc -lavcopts vcodec=flv:vbitrate=500:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -srate 22050 -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames
Ask them to run this command and see if video get converted to FLV.

vShare can show video only if mencoder and do the conversion.