Upgrading Drupal

I upgraded my site from 4.7.2 to 4.7.3. It went pretty much flawlessly, except for one small issue. Whenever I logout/login, I would see something like "http://www.domain.com/?time=1154811401" on the URL(I have clean URL turned on). The tag would be gone when I navigate to another page.

I wonder if anyone else is experiencing this.

Though it causes no harm(as far as I can see), but it would give a bad impression to the users. Does anyone know a fix to this?

I'm finding the new version of Drupal very confusing. Things aren't where they used to be - I seem to recall that the older version (4.6.5) was much easier to customise. Mind you, that could just be me :-/

Upgraded from 4.7.2 to 4.7.3.

my front page is pointing to a specific page.
I used to have the title of the page removed by the following code in Node.tpl.php

    <?php if (($title)&&(!($is_front))): ?>
      <h2 class="main-title"><?php print $title; ?></h2>
    <?php endif; ?>

However this does not work anymore and the title appears!

Is that a problem with 'is_front'?

I just upgraded to 4.7.3 and have some interesting new errors in the recently-modified user.module. To wit:

Hi,

Keep getting this error message:

warning: getimagesize(): PNG file corrupted by ASCII conversion in /home/fhlinux222/g/myname.com/user/htdocs/includes/theme.inc on line 519.

What can I do to please my machine?

How to install a patch file for the drupal-based site hosted under Linux?

If websites can be managed using cPanel

situation 1: with shell access

situation 2: without shell access