PRL: 60613
http://corolada.com/prl
latest PRI is from sprint customizations on 3.56 (2.04_003) but I think it is more buggy than 2.00 (from 3.35) or 2.03 (from 3.49 customizations)
Latest radio 3.42.20 (from some ROM I don't know) and there is 3.42.02 from 3.56 stock flash....
to update your PRI you have to search for the cab that comes from the customizations then run \windows\ppst.exe (but I wouldn't recommend it, yours is the most stable version I think or 2.03 is nearly equivilent, PRL go into EPST \windows\epst.exe enter your MSL and update prl from there under the prl page, radio you have to either flash the radio rom directly from sd card or run the stock 3.56 rom flash (recommended method).