This can be a _REAL_ problem. You need get all your installations up to the same level of code. One problem I had, copying my templates over, is my language.txt file is way out of date. You need to get the newest version of that as well.
It's a good idea to install the new version completely, copy your templates/mods over it, then go backwards and fix up what you need to. That way, anything missing is added, but if it exists, the older (custom) version overwrites it.
PUGDOGŪ
PUGDOGŪ Enterprises, Inc.
FAQ: http://LinkSQL.com/FAQ
It's a good idea to install the new version completely, copy your templates/mods over it, then go backwards and fix up what you need to. That way, anything missing is added, but if it exists, the older (custom) version overwrites it.
PUGDOGŪ
PUGDOGŪ Enterprises, Inc.
FAQ: http://LinkSQL.com/FAQ