HTTP 500 on store page, log into admin just fine

[bigandrew]

Ummm.. The "differences" between the 1.5.7c and 1.5.5f catalog side index.php actually have no commonality to the issue that was described. There was something else that was wrong.

In fact the true differences between the catalog side index.php file for 1.5.5f compared to 1.5.7c is how the content of files is generated/processed. In the older version, the file's contents are generated as a potential array and then each element of the array is added onto the list of information. In the 1.5.7c version, basically the contents of the file were put together by taking an array and forcing it to a string. Again there was no `DIR_FS_INSTALL` nor `DIR_WS_INSTALL_TEMPLATE` in the expected catalog version of the index.php file.

The above differences would not have brought out the issue that was previously described.

1.5.5f:

  foreach ($directory_array as $value) {
    $onload_file = DIR_WS_MODULES . 'pages/' . $current_page_base . '/' . $value;
    $read_contents='';
    $lines = @file($onload_file);
    foreach($lines as $line) {
      $read_contents .= $line;
    }
  $za_onload_array[] = $read_contents;
  }

1.5.7c:

  foreach ($directory_array as $value) { 
    $onload_file = DIR_WS_MODULES . 'pages/' . $current_page_base . '/' . $value;
    $read_contents='';
    if ($lines = @file($onload_file)) {
      $read_contents = implode('', $lines);
    }
  $za_onload_array[] = $read_contents;
  }

I re-downloaded the 1.5.7c zip file - and I'm not sure how this happened, but the index file is different than what I downloaded the other day. So long story short, whatever that index file was that I had in my original download (see attached) was indeed wrong. We are good now. Thanks for the help!