[TYPO3-english] Do I still need kb_md5fepw with TYPO3 4.2.6?

[Christopher]

Hello,

I am using felogin to login a FE-User.

I now found the extension kb_md5fepw, which should save and transmit the 
passwords in a hashed way.

My questions are:
- Is this still needed with TYPO3 4.2.6 or is it already part of the core?
- The extension has a version requirement: not higher than 3.8.4. => Any 
problems with 4.2?
- Does the extension (if needed) also work with felogin?
- The extension says it reuqired PHP 5.0.9 or below(!). => Problems with PHP 
5.2?

Thanks for your answers!

Christopher