Which chat if not IRC?

[Gwion]

I have used the IRC chat mod in a previous install of SMF but my users didn't want to use it for reasons only they know.
I now have gtchat95 running on my site as well as SMF as board. Is there a way to combine both (I read some posts in search but they mainly mention to modify templatexy.php and having few to none knowledge about php and coding I have no clue what to do)?
If that is too complicated, which of the available chats works best and/or is most similar to gtchat (if you know that chat).

I like to find a way so that users don't have to login for each and every service seperately. Same would go for the gallery 4images but that is a different topic.

[H]

Jabber is good although IRC is still the most popular standard.

I fail to see how your users cannot like IRC, it all depends on the user friendlyness of the client they were using.

Were you using a web-client or mIRC (or a similar stand-alone)?

[TechnoDragon]

There ia also the possibility of using FlashChat...I use it at my forum and it integrates and runs very well.

[Gwion]

Huvnet, I totally agree.
Unfortunately my users don't. I guess they are just used to simply click on something and it works while IRC sometimes requires a bit of knowledge. Although with PJirc it was really easy as pie.´

The only reason speaking against IRC is that it is often blocked by schools, work etc. while a web based chat works as long as java or js is enabled.