Hi Suavi,
Earlier I used Fiswork a lot:
http://www.fitswork.de/software/softw_en.php , that software subtract a constant that compare to the dslr camera's bias by automatic. To my Canon DSLR it had been working perfect. You don't have a DSLR so I don't know how well it will perform about bias compensation.
If you find it interesting you can take a look how I do the calibration today:
http://www.astrofriend.eu/astronomy/...roduction.html
I took a look at your photos at Astrobin, very great looking photos. Your telescope looks to have the same design as my TS130 which is bought from Germany. TS are very common in Scandinavia.
I have an older version of this:
http://www.teleskop-express.de/shop/...n-Focuser.html
Very satisfaid with it.
/Lars