Nope. It failed a gazillion deps. MLT 0.5.4 for 64bit systems installs just fine via yum (and is the "latest" version), so I'm guessing the problem is that this just isn't there yet for 64bit systems? Anyone know when the 0.5.10 version will find its way to the Fedora repositories?

error: Failed dependencies:
libSDL-1.2.so.0 is needed by mlt-0.5.10-1.fc13.i686
libavcodec.so.52 is needed by mlt-0.5.10-1.fc13.i686
libavcodec.so.52(LIBAVCODEC_52) is needed by mlt-0.5.10-1.fc13.i686
libavdevice.so.52 is needed by mlt-0.5.10-1.fc13.i686
libavdevice.so.52(LIBAVDEVICE_52) is needed by mlt-0.5.10-1.fc13.i686
libavformat.so.52 is needed by mlt-0.5.10-1.fc13.i686
libavformat.so.52(LIBAVFORMAT_52) is needed by mlt-0.5.10-1.fc13.i686
libavutil.so.50 is needed by mlt-0.5.10-1.fc13.i686
libavutil.so.50(LIBAVUTIL_50) is needed by mlt-0.5.10-1.fc13.i686
libdv.so.4 is needed by mlt-0.5.10-1.fc13.i686
libquicktime.so.0 is needed by mlt-0.5.10-1.fc13.i686
libsamplerate.so.0 is needed by mlt-0.5.10-1.fc13.i686
libsamplerate.so.0(libsamplerate.so.0.0) is needed by mlt-0.5.10-1.fc13.i686
libsox.so.1 is needed by mlt-0.5.10-1.fc13.i686
libswscale.so.0 is needed by mlt-0.5.10-1.fc13.i686
libswscale.so.0(LIBSWSCALE_0) is needed by mlt-0.5.10-1.fc13.i686

If you already have the 64-bit devel packages to all of the mlt and kdenlive dependencies in place, then you might want to give my build script a shot:

http://www.kdenlive.org/forum/kdenlive-0771-and-078-simultaneously

Sorry for what is a basic, bozo question but how do I tell if I have these dependencies in place? I actually think that I _don't_ because the version I have of mlt is 0.5.4 which I guess is not compatible.

But I'd love to give it a try if it's worth a shot!

Well, you will need a whole bunch of -devel packages, but I do know the list - not using Fedora here. Basically, when you try building, you will get an error when there is a missing dependency. Then, you can track down the package, install it, and re-run the build script. It can be a frustrating process.

ISSUE IS SOLVED!!! When I searched the yum repos today I found that mlt and mlt-devel had been updated to 5.10.x and they installed as easy as pie. After that I yumed in kdenlive again and everything worked like a charm. So mlt 5.10 was definitely what was needed...I'm able to use, view, and edit my old .kdenlive files.

And there was much rejoicing. Thanks very much to all above who helped step me through this...jb especially for taking a look and seeing what was going wrong.