Thanks to everyone, specially to Dtothe3 and ItamuM for this glitch about the two artifacts from Hircine!
Turns out I had a save file some hours before my missing daedra quests and the final main quest and started from there. Got the two artifacts from Hircine and that solved everything!!! Although I had to re-do the other 3 quests.
Again, thanks to everyone! You've been very helpful!!
Quick note, but if you start a new character I'm pretty sure they patched it. I know I can't nor can any if my friends with post update (1.8) characters. So you may want to be careful on your next one.