Sorry, not much can be done. You'll notice a lot of sites work like this these days. From Facebook and Twitter to some of the news sites. It's the new way things are done.
The nice thing is the forum remembers your spot, if you're working through a massive discussion. This software isn't perfect but it's the best way I can embrace the future of online communities. Bit by bit, we'll upgrade what we can until it's a more seamless experience.
For now, this is all we've got. Gotta make the best of it.