monitor not working on NAS

hello to all lwz and thz owners and users of the great sw,

I get the sw worked on my ubuntu and on my windows also.
Now I want to run it on my NAS. Its a Netgear with a sparc debian distribution.

I found a python 2.6 package for installing on the nas and also all other packages so far. With some probs I giot all packages working. First with the protocol.py I get no connection with the pump.

But starting the heatpumpmonitor.py the log says:

Starting ...
Heatpump reports Version 4.09
Using protocol definition from milamber (based on 4.38 Robert Penz <email address hidden> and 2.06 Beier Andreas) (v0.1 Created for LWZ 303i V4.09 (iPod control) - 57600 Baud)
Up and running
rrdtool graph /var/www/graphs/fans_week_small.png --start 1321391554 --end 1321996354 --step 300 --title "Fans" --vertical-label percent --width 400 --height 100 --color ARROW#FFFFFF --color AXIS#FFFFFF --color BACK#333333 --color CANVAS#333333 --color FONT#FFFFFF --color FRAME#AAAAAA --color MGRID#CCCCCC --color SHADEA#000000 --color SHADEB#111111 --imgformat PNG DEF:vent_speed_set=/var/lib/heatpumpMonitor/heatpumpMonitor.rrd:vent_speed_set:AVERAGE LINE:vent_speed_set#FF2802:"ventilator speed set" DEF:extr_speed_actual=/var/lib/heatpumpMonitor/heatpumpMonitor.rrd:extr_speed_actual:AVERAGE LINE:extr_speed_actual#D9FF02:"extractor speed actual" DEF:extr_speed_set=/var/lib/heatpumpMonitor/heatpumpMonitor.rrd:extr_speed_set:AVERAGE LINE:extr_speed_set#84FE19:"extractor speed set" DEF:vent_speed_actual=/var/lib/heatpumpMonitor/heatpumpMonitor.rrd:vent_speed_actual:AVERAGE LINE:vent_speed_actual#FFA902:"ventilator speed actual"
========= Tue Nov 22 22:12:34 2011 =========
ERROR: unknown function 'LINE'
---------
Traceback (most recent call last):
  File "heatpumpMonitor.py", line 103, in doMonitor
    r.render()
  File "/c/Secure/NASDevelop/heatpumpMonitor-0.5/render.py", line 218, in render
    g.write(debug=False)
  File "build/bdist.linux-padre/egg/pyrrd/graph.py", line 851, in write
    self.backend.graph(*data)
  File "build/bdist.linux-padre/egg/pyrrd/backend/external.py", line 242, in graph
    _cmd('graph', parameters)
  File "build/bdist.linux-padre/egg/pyrrd/backend/external.py", line 21, in _cmd
    raise ExternalCommandError(stderr.strip())
ExternalCommandError: ERROR: unknown function 'LINE'

=========

So the pump reports the right version, but it doesnt work further.
i think the problem is located at the rrdtool, i have only get the v 1.0.49 working. I cannot compile the newer version.

Thanks

Chris