XMPP Client Siskin SDK Image Fix

I'm developing an XMPP client for iOS and encountering an issue with the Siskin SDK. Images from other users are incorrectly displaying as being sent by other users. This problem occurs during one-on-one chats.

Ideal skills and experience for the job include:
- Proficiency in iOS development
- Previous experience working with XMPP clients
- Familiarity with Siskin SDK
- Strong problem-solving skills and attention to detail