Problems with the SHACoin wallet

[ssnri]

Hello everybody
I had to do a  system restore and after that I had to install again the SHACoin wallet but the address changed. Replacing wallet.dat in the new walett there is only the last transaction! Is there a way to add the old shacoin address , so as it sinchronize to the network, I could recover all the past trasactions? The wallet doesn't connect to the SHACoin network! Please help!
Please take a look and tell me what to do, remembering that I did uninstal and install again several times and I did even another system restore, but nothing.
Help! Best regards,