I'll try to help....but maybe no good for your version?
I use Approach 97
IN Design Mode
1. Click the Add Feild box
2. Click Field Defenition
3. In the Field Defenition Box is a list of your fields
4. Iff you have linked Databases the choose the right DB from the drop down list
5. Alter the number in the SIZE collumn.
6. Click OK
hope this helps