I have tried to install the script several times now, and get this same error each time:
Unable to open install.dat file: Checksum Error:
Header: es/help/help_guide_modperl.html01006660000764000077000000004602072120447
22020675 0 ustar alexcvs

All files and directories are set to 777. Any suggestions?

Can't never could do nothing till he whupped old couldn't till he could...