Try updating to an unmodified BMW version of the SW first.

There are detailed and pictoral instructions on the threads about updating to read through on this very subforum. Make sure you follow them to the letter as they only work when you follow them to the letter. Neil Oakley posted some usefull stuff and links.

If you have the latest version and are ready to move on to the POI updates, follow the threads on how to burn CDs in the correct MODE/FORM.

Next read the POISON thread as it contains the speed camera information and find out how to add the features you want.