problem to run QtCreator

[Qqt]

Hello,
I downloaded the latest QtCreator, 2.0.1 for Linux, qt-creator-linux-x86_64-opensource-2.0.1.bin, but when I execute it I got this message:

• ./qtcreator: /lib64/tls/libc.so.6: version `GLIBC_2.4' not found (required by QtCreator/QtCreator-2.0.1/bin/../lib/libQtGui.so.4)
• ./qtcreator: /lib64/tls/libc.so.6: version `GLIBC_2.4' not found (required by QtCreator/QtCreator-2.0.1/bin/../lib/libQtNetwork.so.4)
• ./qtcreator: /lib64/tls/libc.so.6: version `GLIBC_2.4' not found (required by QtCreator/QtCreator-2.0.1/bin/../lib/libQtCore.so.4)

under /lib64/tls, libc.so.6 does not exist.

Questions:

• what is the absolute path of /lib64/tls? I don't see it exist in all the paths of PATH variable? the only path I can find is /usr/lib64/tls, so if this is the one, why it misses /usr/ in the front?
• does anyone know which Qt version the QtCreator 2.0.1 relies on?
• do I have to download the dependent Qt version of the QtCreator in order to run QtCreator?
• are the error messages above actually about the out-dated glibc libs? If it is, where can I download it from?
• I am currently using the old version of Qt, 4.3.4. Is there a QtCreator I can download which supports it? I couldn't find the links for previous QtCreator releases on http://qt.nokia.com

Thank you in advance for help.