The steps mentioned in Satya's post was for the old SaleHoo site. Now that we are using the new site it's a bit different but less complicated.
To do an advanced search or to filter your searches, simply click on the green SEARCH button (at the upper right corner of the red tab) without typing anything in the search browser.
You will then be directed to a page where you can filter your searches manually based on location, category, type or suppliers that ship internationally.
Hope this helps. :)