You may want to try TrueBSD, it allows hard disk install
http://www.truebsd.org It is based on FreeBSD6.2 PRERELEASE
You may also want to try Frenzy, it will also allow hard disk install too and I managed to install it on my computer easily
http://www.frenzy.org.ua based on FreeBSD6.1
I personally agree that FreeSBIE should have a hard disk installed, the last version based on 5.5 allowed that, this one seems more like a downgrade to me, the developer said hard disk install is not a feature and he did not have the time to do it.
I wonder why developers insist on releasing new distro versions when they aren't ready yet, if there is no time then a release in Summer with all features would be just fine.