That's vmware problems...
go to
http://ftp.cvut.cz/vmware/
download the file called
vmware-any-any-updatexxx.tar.gz
then, in $vmware-config.pl, you will find
...
...
...
What is the location of the directory of C header files that match your running
kernel? [/lib/modules/2.6.20-15-386/build/include]
...
...
the [/lib/modules/2.6.20-15-386/build/include] could be different.