I just adjusted my cart to accomplish this -- offer free shipping as well as other shipping methods. (I'm still using 1.3.8a - so your mileage may vary).
1. I switched from freeshipper to freeoptions. (remove freeshipper).
2. In the order total modules, I had to change ot_shipping -> Allow Free Shipping -> to false. I also put the dollar amount to 0.00.
3. Configure the freeoptions as desired. (mine was very simple).
4. I also had to set the sort order for all of the shipping modules to 0. (This was necessary to work around a strange bug where the text during checkout displayed the incorrect messages to customers.)
Hope this helps.




