There may be a chart here at ATG. I have not looked as I have been using this chart - http://www.emblibrary.com/EL/elprojects/holder.aspx?page=PR1152
Work on a firm surface with plenty of room.
Use a light hand when working with knits so they do not distort.
I use a ball point embroidery needle.
There is the hoop-less method and the hooped method.
This is how I do the hooped method:
On the right side of the shirt, using the placement chart to determine where you want the design, mark center for the embroidery with a sticker marked with a + in the center.
On the back side of this area, place iron-on or sticky back tear-away stabilizer.
Back to the right side - open the outer-hoop a few turns so you will not have a struggle hooping the shirt.
Carefully slide the outer-hoop under the shirt.
Lay the template for the hoop into the inter-hoop and position it over the sticker, making sure it is aligned - you may have to gently slide the outer-hoop a bit until the two hoops match.
Remove the template and bring the back of the shirt up around the hoop in a "donut" fashion.
This is how I do the un-hooped method;
Hoop sticky-back tear-away stabilizer or 505 spray and tear-away.
Determine where the design center will be on the shirt and with a ruler mark a very long + with a disappearing ink pen made for sewing/quilting/embroidering.
Center the template over the + and lightly tape it to the shirt with first-aid paper tape or painter's tape.
Gently slide the hoop under the shirt, aligning the template with the notches on the hoop.
Once centered, gently press with your hand so the stabilizer and shirt are tacked together - just enough to hold them until you remove the template.
Finish gently hand pressing the shirt to the stabilizer.
Bring the back of the shirt up around the hoop in a "donut" fashion.
When using a disappearing ink pen - if the mark is not covered by the design, DO NOT IRON until the ink as totally disappeared. This may not take very long, or you can spritz it with water to help the process. Ironing the mark may make it permanent.
Best wishes and many, many successful projects.
Pattiann