Tab Control With Subforms / "Can't Build A Link Between Unbound Forms" Error

I am trying to create a database for a cub scout pack that just keeps scouts information, medical info, parents info, and parents medical info each is a seperate table. I have created a Tab controlled form with 4 tabs. On each tab the ONLY thing I have is a subform that contains the appropriate information. Each table has it's own form with the table as it's record source. I link the scouts table to the medical table by SID which is a primary key in the Scouts table. I link the Scouts table to the Parents table with a PID which is the Primary Key in my Parents table, and I link the Parents with the ParentsMed with a PMedID, key in the ParentsMed table.

Question #1 - Using a Tab Control you can only have 1 record source. What should I use? I have tried the tblScouts and I have also created a query with every field from every table.

#2 - When I try to use the parent and child links on the subform I get the error "Can't build a link between unbound forms" but each form is bound to the table and the record source on the tab control has had a table and my qryEverything, neither work. I can type in SID but it still doesn't function properly.

Any suggestions or comments on a better relationship method or any insight on how tab controls are supposed to be setup or anything would be greatly appreciated.

Thanks a lot

Rick