How to upgrade from version 1 to 1.72?

[eluser]tomcode[/eluser]
Hm ... I don' know version 1.

You surly will need to fix some code, but with a little luck it could work out :

1. install an empty current CI.

2. Copy Your app over it, except ! the config folder.

3. Copy manually each personalized value of Your old config files into the new config files.

try and debug