If you are wanting to make a mei tai - some good places to start are:

thebabywearer dot com
(US based babywearers site/forum)

sleepingbaby dot net forward slash jan forward slash Baby
(really good resources from a pro sling maker)

christmasevetwins dot blogspot dot com forward slash 2007 forward slash 10 forward slash make-scandi.html
(the best instructions for making a scandi style MT)

and come and pop into baby carriers downunder:
groups.google dot com dot group forward slash baby-carriers-downunder

HTH