Dear Svanni!
This topic was formerly in this list, you can try to seach the old
messages.
So, as I know, the names of the months (without any comments) were:

1. gormánuðr
2. frermánuðr eða ýlir
3. hrútmánuðr eða mörsugr
4. þorri
5. gói
6. einmánuðr
7. gaukmánuðr ok sáðtíð eða harpa
8. eggtíð ok stekktíð eða skerpla
9. sólmánuðr ok selmánuðr
10. heyannir eða ormamánuðr
11. kornskurðarmánuðr eða tvímánuðr
12. haustmánuðr

(info in russian is available here:
http://norse.narod.ru/calendar/calendar.html)

That's all. :) You can look also into Snorra Edda, or into the book
of Árni Björnsson. :)

Excuse me please for my English.

P.S. By the way, who know what's with the OCR of the Zoega dictionary?