To the source .ai I would add a more 'open' format like SVG, supported for example by open source graphics programs like Inkscape.
BTW, I could open it in Inkscape and the import seems ok.
Fixes gh-22 - Add export to svg + add other sizes of the logo
Should be fixed now.
Just to let you know, I won't be online again until next monday.
It seems all ok.
I put the logo on my blog with a link to the plugin page: http://mgiulio.altervista.org .
See you next week, have a nice weekend.