[TYPO3] IF statements - lost again

[Tapio Markula]

Hi

For individual extra info I can set

4=TEXT
4{
if{
value = 0
equals.field = newUntil
negate=1
}
value= , <span style="padding-left:2px;padding-right:2px">tiedot 
tarkistettava</span>
}

But I tried to define it for entire menu objects
tt_content.menu.20.5 {
                                 #wrap = <div class="csc-menu 
csc-menu-5">|</div>
		#special = updated
		special {
                         mode = manual
                         limit = 1000 
                                          maxAge = 3600*24*183

		}
1=TMENU

1.if{
value = 0
equals.field = newUntil
negate=1
}

1.NO.allWrap.cObject = COA
1.NO.allWrap.cObject  {
10=TEXT
10.value=<div><span style="padding-right:2px">
20=TEXT
20{
field=tstamp
date=d.m.Y
}
30=TEXT
30.value=</span>
}

1.NO.linkWrap=|</div>

}

the if-condition doesn't have any effect.
I'm totally confused with if-statements concerning for where
and which objects they can be used.