There are several linux clients that use perl and/or tcl scripting. There are also several 'bots' for connal control ect (eggdrop,energymech,etc) that support tcl and tcl/perl/etc respectively. tcl is a faily easy language to master but not as powerful as perl, perl is harder but for an irc bot/client all its functionality is not really needed anyway. Just some alternatives if you have trouble with mirc under wine or similar linux apps.