I finally got my N900 back on Wednesday - and the compiled module didn't work for me either on stock PR 1.3, to such an extent that BackupMenu couldn't even read mmcblk0 or 1. I was almost stuffed as I'd overwritten the module in /lib/modules on my rootfs backup, but thankfully I still had an old bfs-kernel uImage with the modules matching so was able to boot BackupMenu successfully. I then patched kernel-power46 myself with the diff posted earlier in the thread and booted from that - all was fine, although installing the kernel-modules flagged up the copied module in 2.6.28-omap1 as missing symtab and strtab. The one I've compiled for kernel-power is fine, though, so there's definitely something amiss with the hosted files?