oh my, you have been lead around the proverbial mulberry bush.....its been awhile but making fillable forms In Word or Excel such as you need was my specialty.
We'll use Excel because its so much easier...what needs to be done is create a document that has all the info. In only the cells where you will be putting the variable contract information, like the customers name etc, you goto the cell properties and unlock the cell. Now when you are done and have everything looking the way you want you goto tools>protect sheet. save it as a template.
Ok, now....when you want to do a contract for Jow Blow, you open up the saved template which will open up as a regular Excel document, and you'll only be able to tab around to the different fields that you want to enter in information.
If you have any other questions please feel free to PM me.
p.s. this can be done in word also but I just like the way its so easy in Excel.