There are several websites where manuals can be found:
http://www.tias.com/stores/relics/ has authorised reproductions of many Elna manuals for sale but not yours.
www.diplodocs.com is a free souce but no 1010 there.
www.sewingpartsonline.com is a great site too, and they have yours for sale $US15
link is
http://www.sewingpartsonline.com/instruction-manual-elna-1010.aspx
I don't know this model real well, but I'm guessing it is a front loading bobbin and bobbin case design maybe?? If so, you may well find that just looking at the instructions for any front loading bobbin machine will get you started,
try this link
http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Elna_Sewing_machine_threading/Elna_225_threading_diagram.htm
These Elnitas 225, 244, 245 were front loading bobbin style but "made under licence" and sold by Elna. I think the 1010 may well be a similar design so see if these diagrams help get you under way.
Its always helpful to source the genuine manual if possible though so worth spending the money; manuals contain maintenance info as well as threading up, and different techniques and accessories usually.
Lastly, Blanket stitch. I presume you mean the big chunky stitch where you turn an edge over and it looks like a straight line with a diagonal stitch going to the folded edge at regular intervals like this.
Some sewing machines do a similar "overcasting" stitch but it won't be big like you might want on polar fleece or a blanket edge. The commercial blanket stitch you see on blankets will be done by a special purpose industrial machine and it applies a single thread just as you would when doing a blanket stitch by hand. So look at the stitch selection dial on your machine and see if there is something resembling a blanket stitch but it usually would only be 4mm wide, the maximum your machine probably can stitch.
So if you want a genuine blanket stitch, its a needle and heavy thread hand job, there are instructions on how to do at
www.sewing.about.com, link is
http://sewing.about.com/od/beginner1/ss/blanketstitch.htm
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