Internet Explorer 64 bit troubles, very frustrating! :(

I am using Vista 64 bit, and when launching an application from Eclipse with Flex 3 plugin Internet Explorer 64 bit is launched as default. But, Flash does not work with IE64.
I tried Firefox, but now debugging and profiling does not work. I am trying to find a way to make the 32 bit explorer launch instead, but I cannot… :frowning: