OK. I am glad I can see your database, because it is definitely not designed the way I expected. I think you are making things a bit harder for yourself by having both Option Groups and Text Boxes associated with the same field you are trying to update back on your table. This really isn't the recommended way of going about things, and makes things a bit harder and messier, as you see.
If you are going to use an Option Box, this is the more recommended way of going about it:
The Access Wizard
You might also want to approach this in a different manner. You might be able to get rid of both your Option Groups and Text boxes and replace them with Combo Boxes instead. Then you do not have to deal with the "numbers", if that is the issue for you. You can even make your Combo Box options dependent on other Combo Box selections, as mentioned here:
Basing one combo box on another - Access
Whatever method you choose, I would recommend getting rid of the text boxes, so you are just dealing with Option Groups (and binding them) or Combo Boxes.
If you really want to continue on the road you are on, please walk me through a simple example, telling me what values you are picking on your Form, and what should be happening to the table behind the scenes. Now that I have the Form in front of me, it will make more sense now. I tried looking back at your previous comments, but there may be some disparity in some of the posts (or maybe lack of clarity or complete details), so I want to make sure that I do
exactly what you are doing to see the results you are talking about.