the only hack i saw (at a quick glance) was the moderator drop down hack... anywho.. to do the full upgrade to 6.1 just upload your files in the upgrade package to the correct directories. Then just follow the readme included in the files. This will basically overwrite all your UBB files that make it run, but you will no importing messages or anything of that nature, that doesn't even get touched. You just need to rebuild forum stat files and such... option under maintenance......... real simple to upgrade... took me about 2 minutes...