Has anyone used SIFR or Facelift (FLIR) with ASP.net? I noticed that all the scripts included with FLIR are all PHP pages. I looked around but it looks like there isn't a good solution for image replacement for ASP.net.
sIFR is a client-side technique that leverages Javascript and Flash, so is pretty much independent of which server-side language you use. For some examples of how to implement it, see How to use.