Well guys, after all this talk, I'm agree using RPMs, as Jonathan says. I didn't use RPMs for this installations because one simple thing, I'm so used to install everything by hand, seeing what I'm doing (at least that's what I think.. =)), so I never tried RPMs for postgres, aolserver or even openacs. But my next installation I'll use it for shure, its just simple and more reliable.
I found my trouble, just as simple as it can be, I followed the advice of Jonathan,
review step by step your postgres installation.
I saw:
[root@localhost aol32]# ls -la /usr/local/
total 84
drwxr-sr-x 18 root root 4096 Jul 25 23:30 .
drwxr-xr-x 17 root root 16384 Jul 6 18:16 ..
drwxr-sr-x 8 nsadmin web 4096 Jul 25 23:30 aolserver
drwxr-sr-x 2 root root 4096 Jul 9 07:19 bin
drwxr-xr-x 2 root root 4096 Feb 6 1996 doc
drwxr-xr-x 2 root root 4096 Feb 6 1996 etc
drwxr-xr-x 2 root root 4096 Feb 6 1996 games
drwxr-sr-x 8 nsadmin web 4096 Jul 8 21:42 icecast
drwxr-sr-x 5 root root 4096 Jul 9 07:19 include
drwxr-xr-x 2 root root 4096 Feb 6 1996 info
drwxr-xr-x 3 root root 4096 Jul 9 07:19 lib
drwxr-xr-x 12 root root 4096 Jun 29 11:10 man
drwxr-x--- 9 postgres web 4096 Jul 30 18:07 pgsql
drwxr-xr-x 2 root root 4096 Feb 6 1996 sbin
drwxr-sr-x 4 root root 4096 Jul 9 07:15 share
drwxr-xr-x 3 root root 4096 Jul 3 12:12 src
then I did:
[root@localhost aol32]# chmod -R 755 /usr/local/pgsql
and it worked!!!
Thank you all for your interest and excelent help!