Thanks.

BTW how do I turn off UPnP, when I go to settings/options/network there is a "map port using UPnP" checkbox which is unchecked. But i can't find anything else that looks relevant

Thank very much NeuroticFish

Do you have any idea what insecure could mean or the downside of using it, if I was to open a wallet with coins using this would they be at risk of being hacked?

I have a old wallet that shows a corrupted error message when I load it into a new bitcoin client. I believe I can open the wallet using an old bitcoin-qt client(I have done this in the past but no longer have that client) but I cannot find anywhere to download it(preferably with a window .exe file). The link on the bitcoin.org website doesnt seem to have anything:

https://bitcoin.org/en/release/v0.8.6
http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.6/

Does anyone know where to find this, or any other old bitcoin-qt clients?