install trouble, perl DBI

[Lewis Ashley Foster]

I'm trying to get mySQL installed on my machine but im having a bit of 
trouble, obviously :)

When i come to install mySQL server as below:

rpm -ivh MySQL-server-standard-5.0.16-0.rhel3.i386.rpm

I get this result:

warning: MySQL-server-standard-5.0.16-0.rhel3.i386.rpm: V3 DSA signature: 
NOKEY, key ID 5072e1f5
error: Failed dependencies:
         perl(DBI) is needed by MySQL-server-standard-5.0.16-0.rhel3
     Suggested resolutions:
         perl-DBI-1.32-5.i386.rpm

But I have already installed perl dbi 1.40 like this with no errors:

rpm -ivh perl-DBI-1.40-5.src.rpm

I really cant think how to get round this, unless i downgrade the dbi to 
1.32 but that seems daft.

Any ideas would be greatly appreciated.

Lewis.