If you want to download update script from svn , probably you’re a little confuse how to download it.
to download file one by one , its imposible.
this is guide how to download via Svn

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* First, download TortoiseSVN Client here and install.

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* After install Make a new folder anywhere on your PC

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* Right-click on this (empty) folder, and click on ‘SVN Checkout’

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* Now enter the URL http://rapidleech.googlecode.com/svn/trunk/

into the ‘URL of Repository’ box

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* Leave the default setting and Click Ok.

* The latest update files from SVN will be downloaded to that folder

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* Upload the entire folder to your webhost and its done!

Your rapidleech is ready !

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That’s it for getting the latest version. Be aware that the version from SVN might be unstable, have bugs, etc. There is also the possibility it might work better than an official release, if something was since fixed in SVN. So be careful.