In the suls plugin menu you need to set Multi vod to yes, then rescan and you should see the vod. These are the settings I used to use if it helps you out
Menu/plugins/iptv bouquet maker
Click on providers
Name:enter any name here
Delete:no
Enable:yes
Setup mode:expert
M3u url: Enter your m3u url here
EPG URL: Enter your epg url here
Username:enter your username(not essential)
Password:enter your password (not essential)
Multivod:yes
Picons:no
Create all channel selections:yes
All iptv type:enable
Tv stream type:5002
Vod stream type:5002
Check providers bouquet: Enable
Then press green to save and exit
Then Click on create bouquet
Also you can install service app from plugins menu , then reboot box and go to usage and gui settings,select service app and set to ext3 player and save then box will reboot.Seems to run smoother using service app.