i get a error msg when trying to install the upgrade
May be the following solution can help you
https://forum.cs-cart.com/topic/51536-cannot-upgrade-from-471sp3-472/#entry313855
P.S. Do not forget to make full backup
what does it mean to cd i looked and the ch mod is set at the right permissions under the public html folder
Hello
Ideally, if you had access to ssh, logged in, checked the rights to the directories. They are probably wrong. If you do not know how to do this, the server administrator should do it.
Best regards
Robert