Update - I have managed to get this working after some debug:
root@vuduo4kse:~# /usr/sbin/smbd
/usr/sbin/smbd: error while loading shared libraries: libcli-spoolss-samba4.so: cannot open shared object file: No such file or directory
The following fixed the above:
opkg install packagegroup-base-samba
Now Samba is showing as running and I can connect !
Thanks for all the help and sorry for the delay in responding to those helpfully replying.