As datasheet explains ,simply , inserting the lines below gotta be sufficient to configure RA<5:3> as inputs

BANKSEL PORTA ;
CLRF PORTA ;Init PORTA
BANKSEL LATA ;Data Latch
CLRF LATA ;
BANKSEL ANSELA ;
CLRF ANSELA ;digital I/O
BANKSEL TRISA ;
MOVLW B'00111000' ;Set RA<5:3> as inputs
MOVWF TRISA ;and set RA<2:0> as outputs

Since the way you define your Fuse settings are a bit different than the way I do with my PBP version , the problem might have got to do with yours .. So If you make certain of your "device" declarations , try removing the "end" lines from your code ...
If it still doesn't help , we'll try to figure out an another solution ..

Have a nice day ..