First update ubuntu7.10 souces

sudo gedit /etc/apt/sources.list
#add
deb http://ubuntu.cn99.com/ubuntu/ gutsy main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-updates main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-backports main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu-cn/ gutsy main restricted universe multiverse
#（2）中国台湾省台湾大学更新服务器
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-updates main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-updates main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-backports main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-backports main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-security main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-security main restricted universe multiverse
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-proposed main multiverse restricted universe
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ gutsy-proposed main restricted universe multiverse

Then
sudo apt-get update&&sudo apt-get install g2ipmsg
2How to tranlate file
选定你要发送给的人,右键Attachment,然后打开要发的文件,按向右的箭头，然后回到主程序，再按发送就可以


Have fun