This site has free mp3's for birth relaxation and other issues: Birth Download
It has a downloadable hypnosis program for birth for a fee. The Psychology of Giving Birth Program. I did the Hypnobabies Home Study Course. Some of the tracks are available as downloads, but not all. If you are overseas in a country with unreliable mail service, the Psychology of Birth Program might be a good alternative for you. Again, I haven't tried the program. but it sounds like it is somewhere between Hypnobirthing and Hypnobabies.