Most of them are updated, on the first look, other ones are now core features.
You realy should make a full backup before try anything.
For the google SEO for example you need to revert the core changes and complete uninstall it, deaktivate your rewrite roules and after updating to 1.8 you need to install the new version.
You realy should make a full backup before try anything.
For the google SEO for example you need to revert the core changes and complete uninstall it, deaktivate your rewrite roules and after updating to 1.8 you need to install the new version.