Upgrade for D7

I have been working on upgrading this module to D7. I have made a lot of progress but seem to be a bit stuck at the moment. I'm attaching the whole module because it isn't worth doing a patch for at this point. I have a lot of extra code commented out to ensure I am able to go back if something doesn't work.

I have been able to get it to install and display the report along with the list of links but when it displays the error report I get the following errors.
Notice: Undefined index: !message in _php_errors_show() (line 173 of /sites/all/modules/php_errors/php_errors.module).
Notice: Undefined index: %file in _php_errors_show() (line 173 of /sites/all/modules/php_errors/php_errors.module).
Notice: Undefined index: %line in _php_errors_show() (line 173 of /sites/all/modules/php_errors/php_errors.module).

that line is in the following section of code

    foreach ($results as $result) {
      $variables = unserialize($result->variables);
      $error = $variables["!message"] . " in " . $variables["%file"] . " on line " . $variables["%line"] . ".";
      $row = array();
      $row[] = $result->count;
      $row[] = format_date($result->timestamp, 'short');
      $row[] = wordwrap(html_entity_decode($error), 60, "<br />", 1);
      $row[] = l($result->location, $result->location);
      $rows[] = $row;
    }

basically what is happening is that when you pull the data from the watchdog table in the database it is a single variable that inserts the actual message with the replacement characters but in D7 for some reason you cannot use the special characters for the replacement. I do not know how they do it when they print the errors in the recent error log but I couldn't find the function that called that either. If anyone can help me out on this I will try to have an actual patch worthy of submitting next week.

Thanks in advance.