The file font-awesome-ie7.min.css is include in the librairy but never loaded.
@kev360 I had to merge your change with the new packages system from #444 by hand and unfortunately I don't have access to IE7 right now. I am pretty sure that I did everything correctly but nevertheless, please, check with newest 1.0.7-wip whether the IE7-specific package really gets loaded. If it does not, feel free to reopen this ticket.
I dont have IE7, but I have to support it.
In new versions of IE you can switch to IE7 rendering mode to test it.