JasonP let me know that Iusacell has released OS 18.104.22.168 for the 9530. For some reason it is listed under the 9500 but the OS is for the 9530. Definitely worth checking out since this is newer than the 148 out from Verizon.
BlackBerry Handheld Software v22.214.171.124 (Multilanguage)
Package Version: 126.96.36.199
* Applications: 188.8.131.52
* Software Platform: 184.108.40.206
* File name: 9530AMEA_PBr4.7.0_rel208_PL220.127.116.11_A18.104.22.168_Iusacell.exe
* File size: 107.35MB
Please confirm in the comments if this works for you
NOTE: Don’t forget to delete the vendor.xml file located in c:program files>common files>research in motion>apploader to install it on a different carriers device.