On some pages you can just view source of the page.
For example in the one you posted, if you view the source and scroll down far enough you see the paths to the different languages of the exes:
code:
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051enu.exe" class="blacksm" selected>English</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051esp.exe" class="blacksm" >Espanol</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051fra.exe" class="blacksm" >Francais</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051deu.exe" class="blacksm" >Deutsch</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051ita.exe" class="blacksm" >Italiano</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051jpn.exe" class="blacksm" >Japanese</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051sve.exe" class="blacksm" >svenska</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051nld.exe" class="blacksm" >Nederlands</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051nor.exe" class="blacksm" >Norsk</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051dan.exe" class="blacksm" >Dansk</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051ptb.exe" class="blacksm" >Portuguese</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051kor.exe" class="blacksm" >Korean</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051chs.exe" class="blacksm" >Chinese Simplified</option>
<option value="http://www.logitech.com/pub/techsupport/quickcam/qc1051cht.exe" class="blacksm" >Chinese Traditional</option>
</select>
Hope this helps..