Beginner having trouble with interrupt..

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Bruce I adjust the code, but it doesnt blink the led on PortB.1(only high output) When I use the serial communicator and entering 1 (5x) it turns off the led PortB.1. I was expecting that it will trigger PortB.0.

CLEAR 
include "modedefs.bas" 'include serout defines
DEFINE OSC 20	;using a 4 MHz oscillator here
TRISC = %10000000
OPTION_REG=%10000101	;Page 48 or data sheet
				;Bit 7=1 disable pull ups on PORTB 
				;Bit 5=0 selects timer mode 
				;Bit 2=1  }
				;Bit 1=0  } sets Timer0 pre-scaler to 64
				;Bit 0=1  }
				
INTCON=%10100000	;Bit 7=1 Enables all unmasked interrupts
				;Bit 5=1 Enables Timer0 overflow interrupt 
				;Bit 2 flag will be set on interrupt and has to be cleared 
				;in the interrupt routine.  It is set clear to start with.
RX var byte ' Receive byte
X    VAR    BYTE 	;Declare x as a variable
i var byte
TEMP      var BYTE 52
Cnt       VAR BYTE 49
symbol led1=PORTB.0
x=20
ALPHA		VAR  WORD	;this variable counts in the PauseUS loop
BETA		VAR  BYTE	;this variable counts the 61 interrupt ticks
TRISB   = %11110000	;sets the 3 output pins in the D port
PORTB = %00000000	;sets all pins low in the D port
				
ON INTERRUPT GOTO INTERUPTROUTINE	;This line needs to be early in the program, before
				;the routine is called in any case.
				
MAINLOOP:		
        High PORTB.1       
        For i = 0 to 10	
	    	Pause 1   
		Next i		
        Low PORTB.1     
        For i = 0 to 10	
	        Pause 1   	
		Next i 
        
   ''''''''''''''''''''''''''''''''''''''''''''''''
    IF Cnt=49 then
            led1=1-led1
            pause 100
            cnt=0
     endif   
                   
   ''''''''''''''''''''''''''''''''''''''''''''''''         	
GOTO MAINLOOP	;end of loop
				
DISABLE	
INTERUPTROUTINE:	
   serin PortC.7, T2400, RX 'Receive menu
   Cnt = Rx
   'TOGGLE PORTB.2
   'TMR0=0           ;clear Timer0 before exit
   INTCON.2 = 0   ;clears the interrupt flag.
   RESUME		;resume the main program
ENABLE		;DISABLE and ENABLE must bracket the int routine
END

Do I need to change some settings to have my target output?
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