First question: Do you have the service manual of the van?
Second: you will have to open the belt again to double check the cam positions and belt alignment with cams and crank. I have done this change twice already and the procedure is straight forward when you follow the service manual.
If you need the service manual, you can download it from wwww.nicoclub.com.
Yes, it is a good thing this is non-interference engine. Thus, you have not done any damage to the pistons and valves.
Does your new belt have the white line marks for belt alignment confirmation?