how to use "time_axis_labels"?

Hi NCL users,
I have been trying to use time_axis_labels to plot an xy-plot from my wrfoutput however, I am getting the following error.

fatal:Argument type mismatch on argument (0) of (time_axis_labels) can not coerce

I looked at NCL mail archive and tried Saji Hameed's solution but that also didn't work for me. I would greatly appreciate if some could help to fix this. My script for the xy plot is copied below.

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRF_contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/time_axis_labels.ncl"

begin

 f1 = addfile("/project/k14/basit/wrf-sims/wrf_153/times.nc","r")
 f2 = addfile("/project/k14/basit/wrf-sims/wrf_153/tauaer2.nc","r")
 wks = gsn_open_wks ("x11","outFname")

 nTimes = dimsizes(times_f1)

 date_f1 = times_f1
 year_f1 = str_get_cols(date_f1,0,3)
 month_f1 = str_get_cols(date_f1,5,6)
 day_f1 = str_get_cols(date_f1,8,9)
 hour_f1 = str_get_cols(date_f1,11,12)
 minutes_f1 = str_get_cols(date_f1,14,15)

aoT2 = wrf_user_getvar(f2,"TAUAER2", -1)
 aoT2_new = aoT2(:,0,300,300)

 newdate=year_f1+month_f1+day_f1+hour_f1+minutes_f1
 resplot =True
 restick = True
 restick@ttmFormat="%Y%N%D%H%M"
 newdate@units="200606010000"
 restick@ttmAxis ="XB"
 print(newdate)

time_axis_labels(newdate,resplot,restick)

 plot = gsn_csm_xy(wks, aoT2_new,newdate,resplot)

end

Thanks and best regards,

----
Basit A. Khan, Ph.D.
Postdoctoral Research Fellow
Division of Physical Sciences & Engineering
Office# 3204, Level 3, Building 1,
King Abdullah University of Science & Technology
4700 King Abdullah Blvd, Box 2753, Thuwal 23955 –6900,
Kingdom of Saudi Arabia.
Office: +966(0)2 808 0276,  Mobile: +966(0)5 0860 3617
E-mail: basitali.khan@kaust.edu.sa<mailto:basitali.khan@kaust.edu.sa>
Skype name: basit.a.khan

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Received on Mon May 28 03:02:43 2012