Maybe try editing the template directly via ftp?
Your free to modify anything you wish we just do not assist with code modifications and stuff like that.
I would suggest you install the beta sure its stable I run it on my site
Now couple things to consider. Read the upgrade instructions and perform your upgrade which is uploading all the files except install and the 2 config files and run upgrade.php
after you are done read the install doc as well there are some extra steps you want to do noted below IMPORTANT - FOR VBULLETIN 4 ONLY. New plugins included in download.
1. Upload the contents of the additional.css in our stylesheets directory into your vbulletin style manager under edit templates the additional.css stylesheet in vb.
2. In your gallery directory set permissions on the file pppro_product.xml to 777
3. Go to your photopost admin panel and hit the option to generate vbulletin plugin xml. That file will download to your computer.
4. Go into your vbulletin admin panel and under plugins & products select the option to manage products. You can then use the add/import product option
and upload the xml file you downloaded to your computer called pppro_product.xml file. Once that is done your forum will show gallery content.
5. Thats it your done!!