As you've found out, there is no install file for wififofum, which works very well on the X50. All you have to do is unzip the file on your desktop, and manually transfer the .exe and the .dll files to a folder on your Axim. To run it, just tap on the .exe.
For Total Commander, did you download the .exe installer or the .CAB file? The installer should install from your desktop to your Axim through ActiveSync. The CAB file should be copied over to your Axim, then installed straight from your Axim (tap on the CAB file in your Axim and it will automatically install). I don't know about Hitchhiker but have heard it's a big buggy.
