when you click the "Install VMWare Tools" item it will make a device available to the linux machine that appears to be a cdrom. I would be surprised if Ubuntu did not mount it automatically. If not, just enter
mkdir -p /mnt/cdrom
mount /dev/cdrom /mnt/cdrom
you should see a rpm and a tar.gz file. Since I dont think Ubuntu deals with RPMs you will probably have to install from source.
cp /mnt/cdrom/vmware-tools-xxx.tar.gz /tmp/
tar zxvf vmware-tools-xxx.tar.gz
then go in that directory and follow the INSTALL or README instructions.