Make sure that the file name is exactly as above (i.e. not "siteprobuilder.zpp (2)"). If it is not, rename it to "siteprobuilder.zpp".
Login to Sentora as administrator
Go to "Server Admin" -> "Module Admin"
At the bottom of the page in the "Install a new module" section choose siteprobuilder.zpp (the file you just downloaded) file and click "Install!"
Find "SitePro Builder" in "Configure Modules" section (most likely at the very bottom) and check check-box in "Users" column (you can also check check-boxes in "Administrators" and "Resellers" columns) and click "Save changes"
Your installation is complete... you are ready to go.
Login to Sentora server SSH as root
Execute this command: zppy remove siteprobuilder
Free to download and use Web hosting control panel written to work effortlessly with Microsoft Windows and POSIX (Linux, UNIX and MacOSX) based servers or computers.