http://www.tesnexus.com/downloads/file.php?id=14454

On the picture that shows the 6 hairstyles, I'd like the one on the bottom right, as long as it goes.
I tried just copying these .nif and .dds files into the data folders (where they belong, I know how the mods work ) and making the hairstyle myself in the GECK, but they don't show up in the renderer. Maybe because Oblivion hairstyles can change length, so it's slightly different?

Are you sure you can use Oblivion .nifs? I really doubt that, it probably needs to be converted from Oblivion .nifs to FO3/NV .nifs.

Yeah, you're probably right. There needs to be some kind of conversion.
But it's gotta be possible, since the most popular hairstyle mods exist in both Oblivion and the Fallouts.
That's why I'm asking for a conversion

People have done Oblivion conversions before, and these hairstyles look to be high quality and they would actually fit within the game (unlike most hair mods). Would be cool if someone took this up.

If someone would tell me how to convert it, I could give it a shot myself

I thought ThrottleKitty's hairs were already converted and included in "Ling's Coiffure."

They are:

http://newvegasnexus.com/downloads/file.php?id=35352