Ubuntu :: Bandwidth Usage Monitoring With CONKY?

I'm using CONKY on Ubuntu 9.10, and trying to display network usage statistics for my 3G internet. I want to display something like the following:

Code:

Today---------------------
UP : xxxMb DOWN : xxxMb
Past Week:----------------
UP : xxxMb DOWN : xxxMb
Past Month:---------------
UP : xxxMb DOWN : xxxMb

I have the following script for .conkyrc

Code:

${voffset 4}${font Liberation Sans:style=Bold:size=8}TELKOM 3G (${addr ppp0}) $stippled_hr${font}
Down: $color${downspeed ppp0} k/s ${alignr}Up: ${upspeed ppp0} k/s
${downspeedgraph ppp0 25,90 000000 ff0000} ${alignr}${upspeedgraph ppp0 25,90 000000 00ff00}$color

[code]....