ArmyVideo,
I'd be pretty offended if someone tried to hijack one of my threads like that. What were you thinking - if anything?
Tor

To answer someone else question first.
You can create a credit roll using a TALL png file and then use track pan to make it roll.

The jumpiness issue will look better when it goes out to DVD but a little motion blur will help. Don't think supersampling will help, it had a lot of discussion quite some time ago and I don't recall any practical use being found for it.

The other problem with rolling credits relates to interlace flicker. As the leading edge of the letters move they intesect a line for one field and then the next. Unless the render uses sub pixel sampling this can produce a flicker on the leading edges.

The way to avoid this is to have the credits move at an even number of lines per frame. Unfortunately as far as I know none of the NLEs let you define the speed in line per frame.The pro character generators that output a video signal do but they a pretty expensive and just buying is only hlaf the gear you need.

You can try adjusting the scroll rate in VV to get a good result, try very small increments and you should be able to find the "sweet spots"

The other thing to watch with all generated media is the colour combinations in horizontally adjoining areas. You will not see the problem on a PC monitor but when you convert to a composite signal it shows up as mosquitoes on the edges. Avoid colour combinations on opposite side of the vector scope.
Also use only broadcast legal colours, VV turns on a little yellow warning triangle if you do. Ignore it at your peril, unless you never intend your work to go near a TV.

Softening the edges of the font can help a lot too. A 2 pixel blur around the edge can come close to eliminating interlace flicker. Of course, the problem is that the blur makes the text look blurry too and for smaller fonts this can look as bad as the flicker does.

"VV turns on a little yellow warning triangle if you do. "

Where is that?

In any generated media, try to set the colour to R:255, G:255, B:0. Then you'll see the yellow triangle with a warning: "Color Outside NTSC and PAL Gamut - Click Swatch to Correct".
Tor

I SET A SOLID COLOR TO 255 255 0

AND NOTHING HAPPENS

WHERE IS THIS WARNING SIGN LOCATED

No need to shout. It's in the generated media dialogue. Just above the R: number box.
Tor