Use ODBC Driver version 3.51 required by Crystal Reports

[Peter Kaye]

In order to use Crystal Reports 11 with a hosted MySQL db, Business Objects have advised the use of the 3.51 version of the ODBC Driver. The problem is that the 3.51 ODBC driver, out of the box, does not connect with the database (when the DSN is created, no databases are shown for selection after server,user and password data has been entered ). So three questions:
(a) is it acceptable practice still to use 3.51
(b) any ideas why the 3.51 won't connect whereas 5.1 works fine - 3.5 used to work with this host, what could they have changed, are there any ODBC parameters where changing settings might solve this ?
(c) any comments on MySQL and Crystal ? Crystal 11 works fine with a local install of MySQL with ODBC 5.1.
Thanks.