Now that you know how to use fserve's, let's look at the much simpler xdcc servers. To view a list of all xdcc packs available in a channel, type xdcc list.* You will get several results like this:
This is a list of all packs available from the user MG-L1Qu1D. If you wanted to download pack number 12, you would type /msg MG-L1Qu1D xdcc send #12 in the channel. The file transfer would begin immediately or would be added to the queue.
* NOTE: Some channels have the xdcc list feature disabled. If this is the case, just wait in the channel and xdcc pack advertisements will be displayed every 15 minutes or so.