I had the same issue with "PTS to BitShares claiming".
Even if you do everything by the tutorials, the BitShares client is not too helpful.
I never got my head around the account/wallet combination needed for a successful claim.
In the end, I got help from fluxer who helpfully guided via Skype and screensharing for a finder's fee.
Are you already at the point where you can successfully import a "0.9.3c key export file" with the current BitShares client?