Keeping all your tables in one file does simplify issues like this and also makes any security settings you set up easier to manage. So you should consider learning new tricks--not just sticking with what worked back in the days before FilMaker 7 was released.
That said, you can use Select Window to pop the Scores window to the front to display the layout your script is trying to bring up.
So in teaching an OLD DOG a new trick, do I just put ALL fields in the same file. Seems like the list of fields would be ENDLESS!!! Any website that can give me some tips on organizing all of the fields?
You put all the Tables in one file, but each table can define different records with differing numbers of fields. You can then use Manage | Database | relationships to define relationships between your two tables.