Error after upgrade

[scrapinoz]

Hi, this is the first time I have attempted to upgrade Photopost, the original version I had was 4.1 I uploaded the new changes and then ran the upgrade script but when I go to the gallery I get the following error, I am wondering if I have missed a step or if I should not have gone from 4.1 to 5.3 Hope some one can help asap
Warning: main(/home/memlayout/www/photopost41/languages/english.php): failed to open stream: No such file or directory in /home/memlayout/www/photopost41/pp-inc.php on line 131

Fatal error: main(): Failed opening required '/home/memlayout/www/photopost41/languages/english.php' (include_path='.:/usr/local/share/pear:/usr/local/lib/php') in /home/memlayout/www/photopost41/pp-inc.php on line 131

[Chuck S]

You forgot to upload the new language files.