Hi m8 if i think what I think u looking for than its all ready on your theme all u need2 do is I think the block that u usin is called whois online if u go to your admin panel go to blocks there u will see a block named whois online hit edit in there u should see sumthing thats called
Filename..... in there it has stuff like
Advertising Big Story of Today Categories Content Encyclopedia Forums Languages Last 5 Articles Last Referers Login Modules Old Articles Random Headlines Reviews Sample Block Search StatsTop10 Subscription Survey Top10 Downloads Top10 Links Total Hits User Info Who is Online (Select a custom Block to be included. All other fields will be ignored)
I t will be on Who is Online change that to User Info hit save and u have that block there m8 but as I sead Im not sure if all the themes have that there I know zone cooper dos as Im usin it I houpe this helps Boris