Question regarding shell user creation at login time

[Ganbold]

Hi,

I tested my perl script, C program in FreeBSD 4.9, all work just fine.

I checked OpenSSH version and:

FreeBSD 4.9 			- > OpenSSH_3.5p1 FreeBSD-20030924
FreeBSD 5.2-CURRENT 	- > OpenSSH_3.8p1 FreeBSD-20040226

Is this difference causing the problem?
Should I change something in one of the pam files like /etc/pam.d/login or 
/etc/pam.d/sshd?

Thanks in advance,

Ganbold