For start, this is a really wrong section for this post. Ask this in ESF chat.
This section is for members applying to join the Dev team as a Beta tester. This means a lot of hard work finding bugs in the private beta under development.
If you want to play the new ESF, wait for it to come out.
If you want to play a public beta, download ESF OpenBeta Final
To play ESF will need Steam and a valid copy of HalfLife1
Read the relevant Stickies. If you have troubles, Im sure we have plenty of German members to help you out.