Copy a row from Table A to position 0 in Table B

[dave@softwareonline.com]

I've tried various things for the last two hours, and I give up! What
I really need is ImportRowAt(), and it would solve my issue, but since
that doesn't exist:

I have two tables with identical schema. I run through TableB and if
I find a row that matches my criteria, I want to insert it as the
FIRST row of TableA, which already contains items.

If I could clone the row, it'd meet my needs. If I could InsertAt(0)
without the "row is already in another table error", it'd meet my
needs.

Any help would be appreciated... so far I've seen a TON of posts on
this very issue, but they never get resolved, so I'm not the first to
hit this, but those who solve it don't report back :-)

....so, any of these three will work:

1) Create a true clone of the row from TableB that I am free to
InsertAt(0) into TableA
2) ImportRow into TableA, then swap it within TableB (from the end of
the table to the start)
3) Accomplish what ImportAt() would if such a method existed

Thanks,
Dave