I just found this link to dye fabric and want to try it

http://www.popularpatchwork.com/news/article.asp?a=5868

I have done hand dyed fabrics, but I used Procion MX.

I have a couple of posts.

cool, I want to learn to dye fabric

I've never heard of Dyrect brand, but some of the text was British spellings, so it could be a UK brand. I like the Procions, also.

My problem comes when trying to predict how something will turn out, rather than just accepting what the combination of daylight, heat, and fiber creates with the dye.

I have dyed some with tea and some with coffee, it was very fun to see what I would end up with.

I have also use onion skins and beets. The onion gives it a yellow hue whereas the tea/coffee lean toward the ecru. I have never used any type of "real" dye besides Rit.

did you have to set the fabric afterwards?

If you are serious about learning how to dye fabric, there are far better places to do so than through the website of a hobby shop in the UK! Quilt University has a ton of fabric dyeing classes that are convenient, inexpensive and very informative.

Quilt University?
I buy my Procion dye from Pro Chemicals in Mass (I think).
They give classes.