And for future reference all you need to say is "Verizon" and then we know that the modem firmware is obsolete......It just doesn't matter what bsaeband you have on a CDMA iPhone.
Carrier version..........You'll *never* need to know what that is either.
All you ever have to worry about on your 4S is the iOS version....and literally nothing else when it comes to jailbreaking.
The jailbreak will be out in a day or 2.......I'm guessing the day after tomorrow.
Pretty much all tweaks will work on your phone that say they are iOS 5 compatible, but always make sure to check and see that they are comapatible with 5.1.1, because I'm sure there are a small amount of tweaks that are not fully compatible with 5.1.1......But that never last long.
Just remember that not everything from Cydia will work on your iOS version, and were only made for older version of iOS, and some tweaks aren't made for an iPhone at all. Some are device specific, like for iPod Touch, iPad,etc...Just be sure to check compatibility and you should be fine.