Excuse the late follow-up...
I contacted my web hosting company and they sent me the error log relating to the problem.
[Tue May 12 18:45:02 2009] [error] [client 58.165.107.240] PHP Fatal error:
Maximum execution time of 30 seconds exceeded in
/var/www/vhosts/lotl.com/httpdocs/libraries/joomla/filesystem/archive/zip.ph
p on line 318, referer:
qwerty12test.com/administrator/index.php?option=com_installer
[Tue May 12 20:08:40 2009] [error] [client 58.165.107.240] PHP Warning:
is_dir() [<a href='function.is-dir'>function.is-dir</a>]: open_basedir
restriction in effect. File(/tmp/..) is not within the allowed path(s):
(/var/www/vhosts/lotl.com/httpdocs:/tmp) in
/var/www/vhosts/lotl.com/httpdocs/libraries/joomla/filesystem/folder.php on
line 427, referer:
qwerty12test.com/administrator/index.php
[Tue May 12 20:10:19 2009] [error] [client 58.165.107.240] PHP Fatal error:
Maximum execution time of 30 seconds exceeded in
/var/www/vhosts/lotl.com/httpdocs/libraries/joomla/filesystem/archive/zip.ph
p on line 317, referer:
qwerty12test.com/administrator/index.php
Does this shed any light on the problem? The web hosting company informed me that they have the latest version of PHP installed, if that helps.
Chantel