Next level in Campaign

Ok, I have read the campaign tutorial and it says nothing about how to do this I ask it here...

I am making a campaign and I have finished 1 level. After you finish it in game, I want it to go to the next level, like all campaigns yet, when I put it into the campaign editors, and put in the next level, when you play it, it just goes back to the campaign screen.

I have heard you need to set the next level... I tried to do so but every value I put into the part where it says 'Maps/MapName.w3m' fails and the same result happens when tested... Please explain to me how to fix this...

BTW, the next mission is called 'Tutorial.w3m' if that helps...

It has been several hours, and, not to be a nag, but I am in real need of assistance... Please help me...

Ah that sweet irony.
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