So I picked up a Sugino 46tx130mm 1/2"x1/8" 5 bolt chainring today. I put it on, and it fit on my crank nicely, but the chain wasn't fitting into the teeth properly. I currently have a FSA vero crankset 42t. I know I have clearance up to 49. I am not sure if I got a wrong size, or if I need a different chain. I know in order to use it I will have to get a new chain because the one I have now is not long enough to fit around it. I have a 16t Dicta BMX freewheel on the back. The chain fits fine over the teeth on that and my current chainring. When I put the new one on the chain kinda just sat on top of it and wouldn't sit nicely like its supposed to.
So my questions are:

Did I get a wrong size chainring? If not what kind of chain do I need to get? Will said chain work properly on my freewheel?

Any and all help is greatly appreciated! If I can make this work with min. costs is my goal.