I have been running ZCS FOSS on VMWare server for quite sometime now. And it has been running quite well, thank you. I have the host OS (Windows) do a complete backup copy once a week with a VMWare suspend. During the last suspend, something killed the process (OK, IT WAS ME!

fat fingers...) then I couldn't start the server. Got that fixed and as is well. Mail is flowing in and out without issue. Except...
Seemed that now would be a good time to do the 5.0.18 update for the security patches, since I am still on 5.0.11. But when I try upgrade I get
Code:
[root@mail zcs]# ./install.sh --platform-override
./install.sh: line 26: ./util/utilfunc.sh: No such file or directory
./install.sh: line 29: ./util/modules/*sh: No such file or directory
./install.sh: line 90: ./util/globals.sh: No such file or directory
./install.sh: line 92: getPlatformVars: command not found
mkdir: missing operand
Try `mkdir --help' for more information.
chmod: missing operand after `750'
Try `chmod --help' for more information.
Operations logged to
./install.sh: line 123: checkExistingInstall: command not found
./install.sh: line 134: displayLicense: command not found
./install.sh: line 136: checkUser: command not found
./install.sh: line 138: checkRequired: command not found
./install.sh: line 140: checkPackages: command not found
./install.sh: line 142: [: =: unary operator expected
./install.sh: line 184: loadConfig: command not found
./install.sh: line 186: checkVersionMatches: command not found
./install.sh: line 188: [: =: unary operator expected
./install.sh: line 203: removeExistingInstall: command not found
Installing packages
./install.sh: line 223: [: =: unary operator expected
Can anyone point me in the right direction? I have updated the system in the past without issue.