Had a backup of wallet, but am I right in thinking that if i'd created an address after the backup it is now lost? I have the transaction of it leaving but the address is no longer attached to the wallet it seems.
Guess should backup more often!
Hey hey
No, the address won't be lost. :-)
Wallets always retain a pre-created pool of 100 new addresses. This way, if you backup the wallet and use up to 100 new addresses after the backup, you can still use the backup and use the same new addresses over again.
Just don't create more than 100.