score:2
You can get a visa on arrival at Minsk, but only with supporting documents sent in advance by a travel agency or hotel. Quote 1 refers to applications at embassies, where visas could be obtained for certain purposes without supporting documents. This is up to each embassy.
As for question 2, you can look up Belarusian embassies here http://belarusfacts.by/belembassy/index_eng.html