1) you haven't added lookup recordsets for the UD1, UD2, UD3 options.
just like with the size and color options, you have one recordset to populate the Size list, and another lookup the selected Size, you have done the same for color, but you have not done the same for the other options.
for the UD1, UD2, UD3 options, you only have the one recordset to populate the list, you need another recordset to lookup the selected option, and you need to edit the add to cart code to use the lookup recordset.
2) you have the redirect hard coded. on the page that is working, you edited the redirect to use the goto variable. you have not done that on tis page, it is using a hard coded value.
if you need help in setting this up, we can help through ha premiere support appointment.