Hey I got the solution to my problem:
1. Uninstall XAMPP 1.7.0 and download the newest version (1.7.1)
2. install XAMPP 1.7.1
3. download the magento "full release" (not the downloader)
4. extract the downloaded magento folder to xampp/htdocs
5. go to xampp/php/php.ini, uncomment the line containing "curl" (just remove the semicolon)
6. restart apache services (or alternatively restart your machine)
7. navigate to
http://127.0.0.1/phpmyadmin and create magento database
8. navigate to
http://127.0.0.1/magento to install magento and you're all set!