Thank you for responding. Actually, I have no problem importing my customized template. My problem starts with mapping the fields to the available QB field. There are two lines in the body of the invoice template:

Description of product                          123.00

Description of service                             456.00

So I placed chevrons in them as instructed:

<Description of product>                    <123.00>

<Description of service>                     <456.00>

Then I map them,

<Description of product> mapped to "Item, Product, or Service description"

<123.00> mapped to "Amount/Line Total"

<Description of service> also mapped to "Item, Product, or Service description"

<456.00> also mapped to "Amount/Line Total"

When I preview the invoice, the two lines will show "Description of product" and both amounts will display "123.00". On the live invoice, for one with just one line item, the invoice displayed two identical line items and for another with several line items with long descriptions, the invoice displayed  just the first item with no amount.