To find texts is not hard. But it seems to me that you are pretty new into this :b
There is no beginner stuf in old norse, exept from that beginner course "Old Norse for beginners".
To translate text you know to have a basic knowledge of all aspects of old norse grammar.
And we talk university level.
But chear up =)
I can recomand finding icelandic penpals, and hear some icelandic songs and see some icelandic movies :b
but, since you are so eager, here is a site
http://www.septentrionalia.net/etexts/index.php#onhistoriography
I can send you something else later, small texts with glossery