I've just put up a new beta version of phpFlickr. I've implemented a rather large fix to the XML problems that were plauging it before. If you were having troubles with the XML parser puking when it got to non-english or unusual characters, this is the release for you! Try it out and see if you have any problems with it. Feel free to leave a comment here about whether it works or if you find tons of bugs. You could also use the contact form on this site. All you should need to do is drop it into your phpFlickr folder and watch the magic happen. *crosses fingers*
I've also implemented the new photo replacement API. That should prove to be pretty useful.
Hopefully, I can put out a non-beta release soon if I get positive feedback about this beta.