Freeradius and rlm_mysql with encrypted PWD's

Hi All, In Prev. Threads i read about the same Problem i have now. But i never found an answer which solves my problem. My question is: what kind of Password-encryption is supported in the mysql-DB used by the Freeradius-Server to authenticate Users. Cleartext-PWD's are working fine. Sql-Encryption for the PWD's works fine too. (I used the encrypt() command of mysql to create the encrypted Passwords for the radcheck-Table). Does MD5 or sha1 work too? I tried to get md5 working but get stucked... Can anyone send me a howto or link to one? I can send my configuration if u need. Thanks for your help