I wanted to use my Ovivo Sim (which provides some mobile or broadband for very little) but it usually requires a manual setup - which is lacking on the Cobalt, So I installed the "Network Status" Ap (Jose Antonio Bueno) from Play - well worth a look. However, I did not have all the Ovivo setup info required and no result. The Ap lets you search for available mobile providers - which included Orange. When I tried my Orange Sim again it was working.
I've just added an Ovivo sim to my 101G9. It wouldn't let me create a new APN, but it picked up the sims APNs and allowed me to edit them. I think I edited the one for Pay-As-You-Go internet but don't quote me on that; anyway that did the trick.