First of all, make sure you have installed the kernel-devel package with the exact same kernel version as you are running. Verify this using the commands
"uname -a" and "rpm -qa | grep kernel"
Proceed to the directory "/usr/src" and make a symlink called "linux" pointing to the correct source version (there may be several ones)
Example: "ln -s linux-2.6.16.21-0.13 linux"
Now, type the following commands:
"cd /usr/src/linux"
"make cloneconfig"
"make modules_prepare"
Finally, try "vmware-config-tools.pl" again.