Encoding problem

I upgraded my wp1,2 to wp 1,5 and al my content is fine but when I try to use the plugin EzStatic tte subpages looks like crap, since that is encoded with iso-8859-1, if I change that to UTF-8 you can?′t read what it says and if I change the code in wp my content i wp looks like crap, how can this be fixed?
Do I have to go true phpmyadmin and change al the content ? :/
I need to use ?￥ ?¤ ??