Problem after setup

[dannyterrazza]

When I install a older product than the current, my newer product stops working and doesn't show up in addon manager until I reinstall. Why does this happens? Do I have to install them in the order of they are released?

[Rafal]

Try downloading the latest standalone Addon Manager and install it.
http://www.fsdreamteam.com/sa-addon-manager-setupx