To create account and subscribe to the telegabber JID service you can use any other modern computer for example apple mac with newest operating system.
Tested on PowerBook G3 with MacOS 9.0.2.
Some commands to fix things up:
/config asciiarrows true
Tested on PowerBook G4 with MacOSX 10.5 (Leopard)
Using adium:
Special thanks to Bohdan Horbeshko who makes telegram xmpp bridge for fixes and tips on his project.