Butterfly what is what x920d or x920e (dlxu,dlxub1 )

I am very confuesed with htc butterfly a searching software/rom for him...
On my back cover it say x920d,but in his getvar all it say delux_u (is that dlxu), somewhere it says dlxub1 is for x920e but somewhere for x920d...
so what is what,how to know,
where to find the wright stock rom for this model?
what ever rom I install it keep resetting so the best thing would be stock rom

getvar all:
version bootloader 1.55
version baseband: 3A.32.306.04
version main: 3.13.401.1
version misc: pvt ship on
product:deluxe_u
modelid: PL9930000
CIDNUM:htc_033
comitno-bootloader_: dirty-35824024

every info would be apreciate.