Even if you have a Froyo phone, it still need root apps to run some uncommon Android apps those requires you to have root access. There are some rooting tools available for you on internet that could be easily to download and to be used. I have at least 3 top rooting apps to do root on Android for your Eclair or Froyo. You can use these tools easily, even it only need to have one click.
It is an app you install from the market or by side loading, that has a single button that will root your device. Should be 100% safe - nothing on disk is changed besides the root binaries, so if something goes wrong, simply rebooting the device should fix up any and all issues. Let me know if you find any bugs!
3. SuperOneClick by shortfuse.org
SuperOneClick is a simple tool for "rooting" your Android phone. It allows partial or full rooting and also enables "unrooting." What's new in this version: * Automatic driver installation * Removed RageAgainstTheCage (no virus flags) * New folder structure * Major code clean up All these Android rooting tools above are very easy to use. You just need to install and rest of the configurations are easy. Download, install and root your Android smartphone. Whatever your smartphone brand, series and type e.g: Motorola, Samsung, HTC, Huawei, LG Optimus, you can use it. Check it on the supported phone list that available on developer page.