Try here http://pccardfaq.com/. The download states it is 3.1.1 but I seem to recall the 3.4.2 installer (and perhaps the 3.3 installer as well) may be in the Misc download. But I could be wrong about that. This page http://www.scothiam.com/?q=PCcard_Resources seems to have a link to the 3.4.2 installer but it doesn't download correctly. If the first download doesn't contain 3.4.2, you could try contacting the second guy to get him to fix the download.

Found one more download here http://homepage.mac.com/olivers/Down/OrangePCi.sit. I think this is a copy of an installed 3.4.2 folder.