If you're looking for a detailed plot summary or review of the episode, I can suggest checking out entertainment blogs, Wikipedia, or fan sites dedicated to Victorious.
For over a decade, the only way to see the extended cut was via a rare DVD release in Region 2 (Europe) or through fan-uploaded copies on YouTube and Vimeo—many of which have been taken down due to copyright claims. This scarcity has created a passionate community of archivists dedicated to preserving the longer edit. Iparty With Victorious Extended Version- Download
Approximately 85–86 minutes (excluding commercials), compared to the 69-minute original version. If you're looking for a detailed plot summary