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Of the 3 sites you've listed, keyboard-centrum is the oldest at v6.01.13 and the latest release is v6.01.18. There are known security issues with the older versions.

Having no way of knowing what modifications you've done, the best advice is to upgrade them to v6.01.18 before changing to v7.

Updates: http://php-fusion...p?cat_id=3

Once you've got your sites up to date, you then need to search and see if your non-core infusions have been upgraded to v7 as most v6 infusions will not work in v7.

Once you're confident you infusions and panels are available for v7 you can download the v7 files and follow the included instructions.