WannesNaf:
I am a bit novice in this.
Therefore, I like to program it with the arduino IDE because I am familiar with it.
Can I use the solutions given by Nick Gammon and fungus for this?
Yes. For ISP you just select your programmer in the "Tools->Programmer" menu.
For serial connection you just select the COM port as before.
WannesNaf:
So yes, is there somewhere a toturial available?
There's hundreds of them, try Google.
WannesNaf:
I already have an arduino UNO but now I want to build a project with the atmega328.
You can use your Uno as an ISP to try things out, there's
even an option for it in the "Tools->programmer" menu.
Google for "arduino as isp".