You should see notifications in the app that new versions are available, is the cron running?
If you increase the PHP memory limit you can use the in-app updater, otherwise you can copy over the latest zip.
What about the invalid file permissions error?
Here are the commands to set the correct permissions:
Hillel,
It appears to be working now. Thank you so much for walking me through this. Much appreciated.
Regards,
Mike D