As many of you know, now i don't use Poser for rendering. i use it for reference to do human figure drawing on my real paper with pen or pencil. I need to make clothes too but I dont' know much about fashion. Any free way to see examples of women and men fashion in the web?

http://www.style.com/vogue/

I use poser in much the same way, as a reference or sketch artist to begin an image.   It would depend on the type of clothing you are looking for for reference.  Some sources I use:

For medieval renaissance clothing, look up renaissance faires, and check their vendors, they usually have tons of pictures of their apparel, usually modeled.   Outlet and costume stores are also great references for these as well as looking up on the web sites for renaissance films such as "elizabeth" "shakespear in love" and so on so fourth.

For modern apparel, you can check out fashion sites for runway, or, online catalogs like J.C. Penny, Macy's, Lord & Taylor, and the like.

yeah, www.style.com is awesome!
Also, you can cruise clothing catalogs... www.victoriassecret.com  (they have regular clothes)
www.landsend.com for more run of the mill conservative clothes.
Also, when in a supermarket, I thumb through magazines, or get some when I see something I really want to save.
If you need more period clothing, this is a great place to start: http://www.costumes.org/

hi..waiting for some1 to come out with a clothing software that runs on MAC-any clue if there are any out there?

The Internet is a powerful resource for an artist, tebop. Use a search engine and have at it.