I think this works..
/guildstatus target or name - Brings up guild information.
Then I think you can use this if need be..
/guildleader - Transfers guild leadership status to the targeted guild officer..
I think if you wanna make someone an officer it this..
/guildinvite target or name o
If all else fails you can try petitioning for help from the staff.
Source:
http://wiki.project1999.com/Commands#.2Fguild