CIE will officially release May/June 2010 papers on their Teacher Support website within few weeks after the result i.e 12th August 2010.
The centers have the papers but they have a hard-copy, so you CAN ONLY get a hard-copy IF your center is willing to give you.
The soft-copy of the papers is only with the examiners after the exam till the release of the result. So if you are in touch with an examiner, you might get the papers from him/her.