Seether started as a band in Johannesburg in 1999 and was originally knows as Saron Gas for the first three years of their existence.
Check out the following websites where some of Seether's biggest songs have been transcribed into tablature.
Fret Play - Fret Play has some of Seether's biggest hits available in tab, including 69 Tea, Fine Again, Gasoline, Like Suicide and World Falls Away.
They presently have over 40 Seether tabs available including Remedy, Rise Above This, Broken, Fake It and Driven Under.
Chordie - Chordie is another excellent site that features tabs for songs like Blister, Because of Me, Immortality and even Seether's cover of the Wham! song Careless Whisper.