You don't necessarily need the whole pool software to do it manually, just need to pass a base public key into oclvanitygen (at least I think that works with the current version, mine is somewhat modified currently)
Hmmm, I will have to look at this. I understand the concept of how it works with 2 separate people generate 2 separate hashes which equal the same output, add those 2 hashes together and blind send the result to end client as the summed hash will also equal the same address... But as far as actually implementing it, I will need to research...
Each extra character makes it take ~58 times longer to find. I'm getting ~100MK/s with a somewhat modified oclvanitygen and a 5970, been pushing extra keys that it spits out that I'm not really looking for into my keypool, makes following transactions more interesting to read 
http://www.cryptocoinexplorer.com:3750/tx/408371594efb4b9ab448a622eb7e4a423a2daf919de31743da689fa591594906
http://www.cryptocoinexplorer.com:3750/tx/408371594efb4b9ab448a622eb7e4a423a2daf919de31743da689fa591594906Please tell me more of your modified oclvanitygen =)
Also, what core and mem clocks are you using for your 5970 because I have a Gigabyte 5870 SuperOC with awesome OC potential, I'd like to see some higher numbers if possible, lol...