The installation guide say that I should download the combined package. It seems that the download has been changes and this guide is obsolete. What is the correct way - is that to download the NPk package and then drag and drop that file in the files window?
Note that the combined package doesn’t include everything, but you can supplement it with anything it doesn’t contain. For example upload the combined package (routeros-mipsbe-5.12.npk) and the NTP package (ntp-5.12-mipsbe.npk) if you want to run an NTP server. This wiki page has details of what is in the combined package:http://wiki.mikrotik.com/wiki/Packages