Another newbie here.

I'm somewhat familiar with Illustrator but do most of my work in Photoshop.  Never had this problem with Illustrator after several months of using it to clean up my lines on scanned art work.  I have a shaky hand and cannot trace the images I scan so that is out of the question and the main reason I'm having to use Illustrator in the first place.

I need my lines to be 0.25 Stroke in order to avoid bogging down my pictures with heavy line art.  I got the image into Live Paint as I always do, selected all of the paths (already merged together) and tried to change the Stroke.  About 40% of the vectors changed to 0.25 and the rest stayed bulky - even though they are the same line on the scanned art.  http://www.destinationyume.com/dygallery/galleries/original-bentobox/Horo_Strokes_All_Wrongpng.png

Here's the original: http://www.destinationyume.com/dygallery/galleries/original-bentobox/Horo_Scan_Originalpng.png

I decided to gruelingly manipulate each individual vector path that was too large.  That's when I saw that Live Paint was creating two different vector paths for the same line.  Now I'm just confused.  Here's a close up of part of it.  http://www.destinationyume.com/dygallery/galleries/original-bentobox/Double_Vector_AI.png

Why is it creating a single Vector Line on some parts and outlining the line with vectors on other parts of the same line?  What can I do to avoid it doing that in the future?  And is there some other way to get my lines to the right size instead of manually contorting and deleting all these other lines?

Like I said, tracing is not an option for me.  My hands are too shaky.  Also, I've done about 10 pieces of art this way and never had a problem until now.  

Any help would be greatly appreciated.  I've looked everywhere and I can't seem to find anything that works.

Thank you very much.