It would help if you share the config:
/export file=anynameyoulike
Remove serial and any other private info and post in between code tags by using the </> button.
In regards to information:
http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1 (the reference for setting up VLAN on MikroTik)
https://help.mikrotik.com/docs (the V7 reference from MikroTik)