I found an error in the error-handling code, which causes that "Ok" button to do nothing when you enter invalid data. So it should've notified you that the data was invalid, but it doesn't change the fact it was invalid!
I'm not familiar with the data format that Strongcoin produces. Do you think you could give me a sample that doesn't have any money attached to it? Then I can see what it's expecting. But is it only a single private key? Does strongcoin only use one address for your account?
The numbers that the paper backup give are "Private Key Encrypted", which looks like this:
R2DsdHSkY2/1ohess4WwA2DW5gxHtg+
gfjPNiWSpiPJdNS1TAWzS29sdcASfq5o
Sl1TH5SKRA4jsJ/dWRAzAnGgbHeQajVAR
fps8c2PYbH=
It also gives a checksum, which looks like this:
43543452c78b9c360f847f08dddd42cc
Other than that, it gives you your balance, public address, and password hint.
And I will try and import it into a blockchain account and see what I can do.