[quote]
I still don't get why, but that solved the problems for ZD 2.0.1.
[/quote]
Pretty simple: the ldstub (part of libc, which is statically linked into the binary, responsible for loading the actual libc and other libs) cant find the right ld.so binary - therefore the ENOENT (no such file or directory) error. This happens before the actual application is started. (that ldstub code is provided by the compiler toolchain.)
After installing ia32-libs package, you now have that previously missing ld.so binary, the startup can proceed.