Theres a java app on the WoL site that handles the uploads, easy to use. Beyond that no mods needed although one to automatically turn on your combat log helps. If you dont like running mods you can always /combatlog in game just remember you have to restart it each time you logout. Do remember to split/zip/deleate the logs after uploading though the java app does not like logs that extend over a week and even the spliter utility goes bonkers if you have a month's worth of raiding in a 400meg file.