IMPORTANT NOTE: To use LEGO on the Intel Linux platform, you need to have support for the old 'a.out' binary format. On a RedHat system, you should have the 'aout-libs' compatibility package installed. Your kernel also needs to have support for aout binaries (which standard RedHat kernels do).
Update: for RedHat 6.0, you may need to edit the file /etc/conf.modules to add the line
alias binfmt-0064 binfmt-aoutThe `aout-libs' package is no longer part of the standard distribution, but the version from RedHat 5.2, aout-libs-1.4-9.i386.rpm works for me.