aoetools just got bumped to 27, and aoe-version runs on vserver 2.2.0.6 reveals that the aoe module included with the kernel is 32 whereas the latest gentoo-sources 2.6.25-r7 aoe driver is at 47. The latest version is 64 direct from Coraid. Can the aoe module be updated to the latest version for the next vserver-sources release?
2.3.0.35.6 is based on 2.6.26, 2.3.0.36.4 (which is now in cvs) is based on 2.6.28, maybe you can give these versions a try, but they are still experimental