I had a go at this for you and I see what you mean. It looks to me like the snap point of the text is bottom middle.If you de-select DRAG and type some text and press OK the text snaps to X0,Y0 (you will see what I mean)
As a work around you could do this then Translate the text to where you want it, or you could place a Point where you think the bottom middle of the text should be select DRAG and click on your point as a position.
I will be watching this Thread with interest.
EDIT:- I think I have found an answer +(AutoCAD statement deleted)
Write your text an place anywhere on the screen
Now draw a temporary line 1 inch from the LH end of your box and 1/2 the text hight down from the middle.
Now select FIT TEXT TO CURVE from the drop down menu.
Make sure LEFT is selected
LEFT click your text to select it then click on the RH side of your line making sure the arrow that appears is pointing to the right.
Now Shift Click the righthand end of the line and your Text should snap in place.
You can now delete you temp line if needed
As usual there is a way in BobCAD but its not alway that obvious.
Hope this helps