well there is no supporting information for any vbgallery issue that just looks like a server timeout. You are talking about vbGallery 2.52 which is many years old and is essentially a dead code branch just like vb
3 so it is possible your encountering issues with newer mysql and php that did not exist when that version was coded. People should use PhotoPost Pro with newer software versions andserver setups.
Likewise your PhotoPost Pro you must be using old code because there is no TYPE=MyISAM in our code it is all ENGINE=MyISAM
That is my observation because anything posted in older threads would be corrected in later builds. You can not be using 8.23 because the bug fix your referencing was added back in July 11 to the 7.1 buildset.