This update depends on the latest Chicken Scheme package and has a fix for a serious callback bug. Remove the previous software with:

ipkg remove thumbtribes-client
ipkg remove chicken-scheme-interpreter

and install the new version with:

ipkg install http://zedstar.org/ipk/chicken-scheme-interpreter_2.733_armv4t.ipk
ipkg install http://zedstar.org/ipk/thumbtribes-client_0.09_armv4t.ipk