Help using SetPoint() and virtual frames

[bbq]

Currently I have the following code:

        PixelSet = {}
	PixelSet.main = CreateFrame("Frame", nil, UIParent)
	PixelSet.main:SetHeight(3)
	PixelSet.main:SetWidth(6*3)
	PixelSet.children = {}
	PixelSet.colors = {}
	for i=1,6 do
		PixelSet.children[i] = CreateFrame("Frame", "Num"..i, PixelSet.main, "ColorMePinkPixel")
		PixelSet.children[i]:ClearAllPoints()
		PixelSet.children[i]:SetPoint("TOPLEFT", PixelSet.main, (i-1)*3, 0)
		PixelSet.colors[i] = getglobal(PixelSet.children[i]:GetName().."Color")
	end

and

<Frame name="ColorMePinkPixel" virtual="true">
		<Size>
			<AbsDimension x="3" y="3" />
		</Size>
		<Anchors>
			<Anchor point="LEFT" relativeTo="$parent">
				<Offset>
					<AbsDimension x="0" y="0" />
				</Offset>
			</Anchor>
		</Anchors>
		<Layers>
			<Layer level="BACKGROUND">
				<Texture name="$parentColor">
					<Color r="1.0" g="1.0" b="1.0" a="1.0"/>
				</Texture>
			</Layer>
		</Layers>
</Frame>

What I want to do is arrange 6 3x3 boxes into a 18x3 row. I can do this easily if I make a normal, non-virtual frame, but if I try to use lua it just doesn't work. I get a single 3x3 box. All of them are there as far as I can tell, because none turn up as nil when I check.

I've tried many different combinations of SetPoint(), including setting top, left, bottom, and right individually and playing around with the parent parameters.

Also, working with what I have at the moment, PixelSet.main:SetScale() doesn't seem to work.

Any help with either of these probems would be greatly appreciated.

Edit: OK, I fixed it. Forgot to use SetPoint() on PixelSet.main