We are working on a SuSE port, but you may be able to get the RHEL4 binary working.
The problem you're running into is probably related to the way stock SuSE kernels are built. The option IP_NF_NAT_LOCAL is not enabled, so port redirection (eg 389->7389) for packets originating on the localhost won't work.
You can verify that this is the problem by telnetting to the localhost on port 7389 (where the ldap server is actually bound). If that works, you may also find that telnetting to the host on 389 from a different server also works. (Both of these assume that slapd is running).
So, the solution here is to rebuild your kernel with IP_NF_NAT_LOCAL enabled, and re-install. (The current installation is most likely quite borked, since none of the ldap or sql initialization succeeded).
There's a discussion of this here:
https://lists.netfilter.org/pipermai...er/057099.html