Forms :: Binding Results Of Query To Textbox Then Writing Value To Table?

Basically, I originally wanted to create a form which I can input data into Access with by using a button (I was unable to get Access to append the information from the forms to the table, so it didn't work out!). I did not want the fields on the form to be linked to a table, as then a record (and most importantly an auto-number) is created as soon as somebody starts typing. Should somebody stop typing halfway through and quit the form an autonumber will have been generated, which makes the number of "users" seem higher than it actually is. I got around this by changing the field from autonumber to number and then creating a query that selects the maximum value of ID in the table, then adds 1 to it (which is essentially the lowest unique number. I tend to call this newID).

The problem I now have is setting this to be written to the table alongside the data from the form (the rest of the fields on the form are now connected to the table, as I am no longer using an autonumber). I have tried the following: Setting the form to run the expression "[ID] = [qryMaximumUserID]![NewID] " on load. This returns the error "The object doesn't contain the Automation object 'qryMaximumUserID.' Setting the control source of the text box to be dLookup. This fills the textbox with the correct value, but then it doesn't write it to the table! Setting the default value of the field to be 0, then running an update query to update any ID of 0 (criteria "0" to the value of newID "update to: [qryMaximumUserID].[NewID]. "). However this doesn't work as whenever the query is run it asks for a parameter to be entered, rather than just taking the value from the other query. Writing a macro that is run on load to SetValue of item:[ID] to expression: [Forms]![qryMaximumUserID]![NewID]. However this returns an error "Microsoft Access cannot find the referenced form 'qryMaximumUserID' you entered in the expression.