Update from version 5.4.2 to current

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Hi everyone,

I am having an issue with upgrading from version 5.4.2 to current, if possible.

Firstly I have attempted to do a manually upgrade using this method:
http://www.concrete5.org/documentation/how-tos/developers/manually-...

But without success!!

I am running it all on localhost, but the entire site came from a live server where the providers upgraded to a newer version of PHP and MySql, so the live site is not functioning correctly.

Has anyone of you any good advise to how I could get this to work?

//Carsten - Denmark

sabumnimdk