Customers getting an error and can't download their products

[WendyG]

My customers are able to go through and place their order and pay for it. When they get to the part where they download their items they are getting an error and cannot download. All my attributes are showing as valid. I have changed the pub file to 777. Can anyone help me out? This is very frustrating. Thank you!!

[WendyG]

I forgot to add what a customer got when she tried to download her product:
Oops! Google Chrome could not find pub

[lat9]

What type of file is the download (e.g. zip, pdf)? The reason I ask is that there's a file named /pub/.htaccess that restricts the filetypes for the download. Here's what it looks like for v1.5.0:

#
# @copyright Copyright 2003-2011 Zen Cart Development Team
# @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
# @version $Id: .htaccess 18695 2011-05-04 05:24:19Z drbyte $
#

## the following line is needed to allow Download-By-Redirect to work
  Options +FollowSymLinks

#
# This is used with Apache WebServers
#
# The following blocks direct HTTP requests to all filetypes in this directory recursively, except certain approved exceptions
# It also prevents the ability of any scripts to run. No type of script, be it PHP, PERL or whatever, can normally be executed if ExecCGI is disabled.
# Will also prevent people from seeing what is in the dir. and any sub-directories
#
# For this to work, you must include either 'All' or at least: 'Limit' and 'Indexes' parameters to the AllowOverride configuration in your apache/conf/httpd.conf file.
# Additionally, if you want the added protection offered by the OPTIONS directive below, you'll need to add 'Options' to the AllowOverride list, if 'All' is not specified. 
# Example:
#<Directory "/usr/local/apache/htdocs">
#  AllowOverride Limit Options Indexes
#</Directory>
###############################

# deny *everything*
<FilesMatch ".*">
  Order Allow,Deny
  Deny from all
</FilesMatch>

# but now allow just *certain* necessary files:
<FilesMatch ".*\.(zip|ZIP|gzip|pdf|PDF|mp3|MP3|swf|SWF|wma|WMA|wmv|WMV|wav|epub)$">
  Order Allow,Deny
  Allow from all
</FilesMatch>

<IfModule mod_headers.c>
  <FilesMatch ".*\.(zip|ZIP|gzip|pdf|PDF|mp3|MP3|swf|SWF|wma|WMA|wmv|WMV|wav|epub)$">
    # tell all downloads to automatically be treated as "save as" instead of launching in an application directly
    # ALERT: ForceType requires Apache2 or later. If using older version of Apache, it will need mod_mime installed. Or just comment out the ForceType line below
    # (to disable, just comment the next 2 lines by adding a '#' at the beginning of each):
    ForceType application/octet-stream
    Header set Content-Disposition attachment
  </FilesMatch>
</IfModule>

IndexIgnore */*


## NOTE: If you want even greater security to prevent hackers from running scripts in this folder, uncomment the following line (if your hosting company will allow you to use OPTIONS):
# OPTIONS -Indexes -ExecCGI

If your download file's filetype is not listed in the statements I marked in red, just add your filetype to the lists (without the .) and reupload the .htaccess file.