i had a little time yesterday, also there was an issue with c.net and a my antivirus kicking me off here , i believe thats been fixed,
anyway the upshot is is probable youve lost your data
i spoke to someone who uses raid5+1 and asks is there a rebuild option in your bios or software?
if not theres a link to a a site here which may help , ive read a lot there but not so certain if it will be successful for you
as the man said raid 5+1 (mirror) is the only way to go with raid
and he backs up to paid online storage as an extra precaution.