LWP_Validate_cart - Inserting a precart page

I am tinkering around with the TNEW precart functionality  just to see what it can be and I'm stuck on what is probably a 101.  Using the sample code, I am using some test data to check it out.

What I am seeing is that the page loads like a dream come true, but when one of the following links is clicked from the new precart page, a new tab is opened.  Does a new tab have to open or is there a way to keep everything in the same tab by building in target or location syntax in the urls or perhaps some other code I have not yet stumbled across?

Dot

+'<table><tr>'

set @PageText=

+'<CENTER><h2>If you are ordering season tickets, blah, blah, blah.... <BR>'

+'<table><tr>'

+'<td><a href="">test-na-atol.tn.services/.../contribute.aspx" target="_parent"><img src="'">actorstheatre.org/.../td>'

+'<td><a href="">test-na-atol.tn.services/.../Reserve.aspx src="'">actorstheatre.org/.../a>'

+'</td>'

+'<td><a href="">test-na-atol.tn.services/.../packageDetail.aspx src="'">actorstheatre.org/.../a>'

+'</td>'

+'</tr></table>'

+'<br><br>'

+'<br><br>' +@checkout_btn