Hi Jim,
Thank you for your purchase.

Can you please send me the link of that table so I can take a look and try to increase the text box.
Thank you.

Hi Jim

For text alignment you can use this code

.wpDataTablesWrapper table.wpDataTable td, .wpDataTablesWrapper table.wpDataTable th
{ text-align: left !important; }

this is an example of left alignment, if you want right or center you just change the word.

Also for increasing the Text Box you can see this code that I added on your page 

textarea#table_1_Instructions {
    height: 200px !important;
}

Let me know if everything is ok.

Best regards.