navigate the timeline button in python

I am looking for someone who are a familiar with xbmc media application and python 2.6. I have a problem with the python code, everything are working fine but I have no idea how to navigate the timeline to allow me to change the images for each program and channel button to change it, example: change the images from button1 yellow to blue and button2 change it from blue to yellow. If you can take a look and if you think that you could can do it, please could you test it first and let me know. Invite me to teamviewer only to prove to me that you can get the work done. I want to pay $30 to do a quick small fix for a small job. Thanks for your interested!!!!