If you want to install from a package, install the OpenSSL package as well. (Don't think you would need OpenLDAP but you can install that if you have problems)
You can find it on the IBM freeware page or Bullfreeware.
I recently had problems with the package you're trying to install.
I then had to download, install gcc and compile.
configure --prefix=/opt/samba
make
make install
Then I installed the mkinstallp fileset and created a package for my other machines.
By the way, if you're joining a Windows domain and using a user map file to map Unix users to Windows Users, remember to use the domain name as well. (I found out the hard way)
eg. root = NTDOM\\administrator
Good Luck
"If you always do what you've always done, you will always be where you've always been."