You said it ....
There's lots of things wrong with it that you need to sort out yourself before I can do anything with this.
Hopefully you KNOW what its meant to mean whereas I can only guess what you are trying to do.
To start with ...
As I said in post #10 the form frm_Find has 2 undefined or missing fields: Location & Date_Booked.
As a result, I can't enter anything in those 2 fields - no error but nothing happens
EITHER make both of these unbound fields ... if you do this you should be able to save the record to the required table field(s) using After_Update events as you suggested earlier
OR change the form record source to include the table(s) holding these fields.
This will mean the data will be saved automatically after entry (assuming the form query isn't read only)
Location could be from tbl_Location or tbl_Tracking but I can't find a field Date_Booked anywhere.
There is a 'Date' field in tbl_Tracking - to avoid problems you need to rename this as e.g. 'TrackingDate' because 'Date' is a reserved field in Access.
I also had a quick look at frm_Booking & that's also got errors. I get error 3201 if I click Save button ...
I expect there are other issues but that's enough to be getting on with ...
Please work through & fix the structure of your forms to fix these errors.
Hopefully doing that will solve your issues but if not, re-post the db when you've solved the issues I've outlined