Can't open old Logic songs in 9.1.1

[musicgarde]

Hi, I have been trying to open some of my old songs (published in 2002) to do some remixes. They were produced with logic Platinum (version 6,I think). (Note: I have been doing my productions with Logic for many years, since the first versions).

 

Unfortunately, I get a message that Logic 9.1.1 cant open them and I need Logic 7 or earlier.

 

I found in the correspondent back up disk of that time some of those old Logic versions, but ofc if I try to open them they ask me for the Key (which I don't use for so long that I have no idea where it can be).

 

Is there any way to convert the 6 or 7 Logic songs to 9 current version, pls? Is very important!.

 

Thanks in advance