Thanks, Akseli and Gronkling!
Haven't updated this database in a while.
Unfortunately, joem4.dat is TeamHellSpawn's level pack. It's a naming mistake on my part. As I found joem4.dat-joem9.dat on my hard drive and not in the Garjen website (not even through archive.org), joem4.dat remains missing. My old hard drive is not where I live right now, and other than that, the only two other people who may have the pack would be Crane and Joe himself. If you have the pack, please send it to me so I can have it uploaded. Thanks.
New packs:
Gronkling
GronkLems 1 and 2 (thanks Gronkling for uploading them)
geoo's database
Eymerich/Ellischant
geoopck2.dat (this one is more of a preview)
Lemmings Heaven
10 levels with a twist by an unknown author This one is grams88's pack, and has already been uploaded to the Database.
Team Hell Spawn:
Levelpak001.dat by Team Hell Spawn