Problems with PowerDirector Express (JVC Everio)

I wanted to reply here. First of all I have a GZ-MG575 Everio. I love it. But OH DEAR, have not had any trouble with the software they supplied with it, but sure did when I tried to upgrade. They (JVC) include Power Director 5 Express. So I tried to upgrade to Power Director 6, which of course I couldn’t. Now maybe I am really thick , but it seems that I should have bought PD6, or at least PD5 and then upgraded. Well with the trouble I have had, I am now looking for another program to use. I have a great one on my PC which I used before I got the HDD one. Sony Vegas. i so love it, but it will not accept my HDD camera. So it would be nice to know if you guys can help me here.