For the correct path, you must extract Plugin content into Sketchup/plugin and Resources content into Sketchup/Resources.
See below:

See install guide here:
https://sites.google.com/site/lssoft2011/home/lss-toolbar

I want to make this gate, using 2d autocad drawing. Pls help me how to do this in sketchup. Thank you

I tried, but it only works with curved line, I have a line is curve, angle and up. Pls see the pic above.

I have this pattern, I want to bend it follow the path like this.

My co-worker created this stairs in Inventor, now I want to do it in Sketchup. Pls help me how to do it?

Thank you