itunes 10.5 library to a older version of itunes

[fc0712]

i have reinstalled snow leopard because there was some problems it is fixed but then i wanted to import my music back in itunes but because i have downloaded itunes 10.5 it says that it cannot open itunes because the libary file is to a newer version.
i was just moving my whole itunes media to my external hd then from it over to my new reinstalled then this happened

 

[old-wiz]

Applications can only read their databases from their own revision or previous revisions.

In other words, Application X, version 5.0 will read databases from 5.0, 4.0, etc, but will not read databases created in version 6.0.

You need to find an older version of your iTunes library or go to newer version of iTunes.

 

[fc0712]

will itunes 10,5 be releassed with lion