oh sorry for alert I've already somehow deal with it (sent back to my addr) but on the market the state is signed 1/3 which is BS cause it is signed 2/3 I've just foudn out now

So I was involved in multisig transaction (2 of 3) the mediator signed the transaction, but the other person is out (hard to reach) and I'm having a problem signing the transaction. I did this transaction via coinb.in. I've backed up the private (WIF key) address, pub key. Here are the details https://blockchain.info/tx/785fb9e48c0137828faaa52dc36a7d86dda0cb8d70e73832cbe23221b82caef4
redeemscript 52210260de413dcab13ca7119122d39bfea02dbb211b8be57dd19f9c2bf38d7a3dc334210270e6a 6ccd15464ef8fe4a4f5ee4e0f15f436decaafd9fee6aa836b7cdf38da5321039e3ca7a8f5dcd3ca bfa88ec3abea48eb15b5b2962ff0d76c7d332b97289fdbad53ae
my addrr: 15wBHApydeeNzVoU1BGYrDba8FpVMXD5D9
my pub key: 0270e6a6ccd15464ef8fe4a4f5ee4e0f15f436decaafd9fee6aa836b7cdf38da53
I want to send it either to 1Rv7aBwcmyD6JyF2FWUkPbgJPsxMndDyS or 1pbarBA4zP1bbCRydBUxweQxVfsaAHqDo
I just cannot handle to sign it, what should I do?
thanks Rob

So I want to start browsing the .bit domains - the proper way - there is a guide https://wiki.namecoin.org/index.php?title=How_to_browse_.bit_domains and it says that I've to download the whole namecoin blockchain which I do not want, the setup guide is lookin confusin anyway - is there any other way to do achieve this. or I'll have to use the other options like using opennic ?
thanks Rob

Thanks fellas,
solved but I've another question, how can I recover history? I upgraded the btc client to 0.8.5 version and I've blk000x.dat... files and blkindex in old version, I copied it into new version but that won't work

I use linux, my wallet was in chown-ed folder but as I install second distro I eventually removed  filesystem parititon of the old distro. After that my wallet (which is in another parition which remain unchanged -no formatting) has different adress, cleared history, no coins.. but fortunately I backed it up before. So my question is how to restore the old wallet?? I read somewhere that I've to name the back wallet.dat and place it somewhere in bitcoin folder but where??

I use linux my wallet was in chown-ed folder but as I install second distro I eventually erase  filesystem parititon of the old distro. After that my wallet (which is in another parition which was left there unchanged -no formatting) has different adress, cleared history, no coins.. but fortunately I backed it up before. So my question is how to restore the old wallet?? I read somwhere that I've to named it wallet.dat and place it somewhere in bitcoin folder but where??