The CPP is public again since yesterday, so re-registering for a Key and the Iso is possible again to everybody.
Also you should have received a E-Mail containg your already registered Product-Key when RC1 was anounced last week.
Secondly : when you have such importent data - why do you take the risk and use them with a Techbeta-OS ?
burn your data to disks or put it on a USB-Stick- load them up to a Server, use Windows- own backup tools or get products like Acronis TrueImage/ Norton Ghost and the like. And do it regulary.One can not say this often enough.
A Harddrive is a delicate mechanical part, that can stop working literally any minute.It happened twice to me without a warning.
But sometimes it is a good lesson to have dataloss, next time you will prepare sooner.
Especially if you are interested in the latest OS it is the first rule to backup everything.
SBJ