Default Original TMobile 4.2.2 Rom?

There are two different 4.2.2 T-Mobile firmwares, the TMO_RETAIL_XT1053_4.2.2-13.9.0Q2.X-116-X-17-57_MR1_CFC.xml.zip and the TMO_XT1053_4.2.2-13.9.0Q2.X-116-X-17-6_CFC.xml.zip
How do I tell which I'm looking for? And if anyone has a copy of the one I need, since the source is currently offline, I would much appreciate it.