"... due to release this month." probably means " ... somewhere between now and thirty days"
SW-Soft doesnt tend to set hard release dates for their products, so it's always getting pushed back... when you've just prepared fresh new systems for installation.
On the other hand, we can assume they will be able to squash alot more bugs, right?
I've seen you can get it to install on FC4, fedora4 (search optimization) by doing some work manually with the rpms and by editing your redhat-release to core 3.