Create a formula, assuming your SQL expression is called {%mindate}:
if year({%mindate}) <> year(currentdate) then
date(year({%mindate}),1,1) else
date(year({%mindate}),month({%mindate}),1)
Add this as your column field in the crosstab and then click on group options->options tab->customize group name->use a formula->x+2 and enter:
if year({%mindate}) <> year(currentdate) then
totext(year({%mindate}),0,"") else
monthname(month({%mindate}),true)+" "+totext(year({%mindate}),0,"")
Note that when you reference a thread, if you leave no spaces between the word "thread" and the number, it will create a link, like this:
thread767-1462006
-LB