All right, so I thought I'd throw together a handy little guide for y'all. The server select screen should be fairly self-explanatory for Shoddy regulars, if not easier because there's only one server at the moment. Log in with the same username and pass as you do on these forums, and you should see a screen that looks a bit like this.
Those of you familiar with the Internet Relay Chat interface should figure out some of the symbolism fairly easily. Master Balls symbolize ops, Poke Balls are mods, and BlackGlasses mean that they're allowed to talk when the channel is being moderated (in tech terms, they have +v, so they can still post while the channel is under +m in addition to the ops and mods).
Of course, hanging out with other battlers is all fine and dandy, but eventually you'll want to build a team and battle with them, right? Pokemon Lab can do that, too. Open the File menu and you should see a Team Builder option. Select it to go here:
Immediately you'll notice that you have more options than you did in the original team builder. The selected moves are listed above the window listing the rest of the move pool, there are options to select your Pokemon's happiness level (for you Return/Frustration users?), natures are explained in greater detail, and how many EV points you have left to distribute is visible as a bold number above the EV distribution column. When you're happy with what you've drummed up, save the team, and it will be loaded as an .sbt file (presumably for Shoddy Battle Two). When you're ready to get rough, go to File, hit the Find option, pick your ladder, load your team of choice, then hit Find and get ready to have at it. (Sorry, no UU ladder as of yet.)