Got just my very first road drawn, the motorway from Riyadh to Dammam (currently uploading the data with my hopelessly slow internet connection). I'll continue with the road to Doha later on.

Got my problems resolved, thanks to TomH. I'll start mapping the highway between Dammam and Riyadh.

Uploaded tracks from Riyadh to Manama (Bahrain) and Doha (Qatar) and tracks from Al Ain (UAE) to Muscat (Oman) and from Muscat to Fujairah (UAE).

Tried to start using JOSM, but the server seems to give me an error 403 no matter what I try to download or upload. Couldn't find any help for the issue from FAQ or the Beginners help at wiki.