Vertex2: support for garbage collection under XP/Vista?

Hello,

I have Googled enormously but seem not to be able to find any clear
statement about the support of OCZ for their Vertex2 ssd's as to
garbage collection under other Windows versions than Windows7.

Since yesterday I use a Vertex2 on my xp-pc and I hope very much that
this has not been a expensive mistake!

Even 'Tony', a employee of OCZ who has written an article on their
forum about Vertex2 and inbuild TRIM is not clear about this.

Could someone please refer me to a statement that gives a definite
answer to my question?

Thanks in advance,

Massimo