Data loss :( Rated 2 out of 5 stars
As has been noted many times before, the update to .7 results in losing all data. Silly me, I thought the update functionality in T'bird was meant to free us all of looking up websites, downloading stuff, installing, etc. I guess I was wrong.
I tried it the way photogryph describes, but when I try to import my .ics, Java gives me an error message. So, I guess I'm stuck with .5. I'm very disappointed.