I'm currently using the Visual-17 by tronn theme and I noticed that it's using a fairly old version of the rainmeter module. I'm fairly new to litestep, but if anyone can help me out, or point me in the right direction on how to update the module I'd appreciate it.

change the corresponding netloadmodule line in theme.rc ... but before you update you should ask yourself why you want to do this ... the syntax of rainmeter has changed and if your theme is working ok you shouldnt update - or else you will have to fix some things to bring it back to life again :P