Installing and upgrading help

Hi.

I've gotten good help and I think I'm 90% there.

my webhost edatarack.com let me install moodle with a one button GUI of their own. It installed moodle ver1.1.1. I don't have shell access so I downloaded the tar to my OSX mac.

When I upload the files from macOSX the files don't keep the same permissions. I assume permissions are very important. The question is how many files need key permissions. There are hundreds of files in the tar download. I can find one so far. Admin folder, file called creators.php

Is there a list of files that must have certain permissions?

steps i've done so far
================
renamed my moodle folder to moodle.backup
on my mac i ran the command terminal ( under apps, utilities)
I ran the command
tar zxvf moodle-latest-14.tgz
I then uploaded the files with Captain FTP (mac osx)
I noticed some files had permissions lost



notes:
i do the local directory listing
ls -l
I am shown files with a variety of file permissions.

example
moodle/admin
-rwxr-xr-x 1 mrrowe staff 3540 Aug 5 02:24 creators.php
-rw-r--r-- 1 mrrowe staff 7242 Aug 6 22:56 cron.php
-rw-r--r-- 1 mrrowe staff 1059 Nov 19 2003 dbperformance.php
-rw-r--r-- 1 mrrowe staff 1801 Jan 5 2003 delete.php
-rw-r--r-- 1 mrrowe staff 3217 Aug 31 07:13 editor.html



when this is uploaded the files look like:
-rw-r--r-- 1 roweclassroom psacln 3497 Sep 7 19:40 creators.html
-rw-r--r-- 1 roweclassroom psacln 3540 Sep 7 19:40 creators.php
-rw-r--r-- 1 roweclassroom psacln 7242 Sep 7 19:40 cron.php



Thanks, Joe.