Password must be in form:
{CRYPT}$1$seed$crypted_pass
slapd.conf must have:
password-crypt-salt-format "$1$%.8s$"
If you run slapd on linux, it must be linked with -lcrypt, wich MUST BE
LINKED BEFORE "-lcrypto"
if you run slapd on bsd, just edit slapd.conf.
Best regards, Brane