I will reiterate what PP has said, you are not running an anti-virus program AND you are not running a firewall. Yet, you state in your post
...and could finally download some stuff
Very dangerous without an active anti-virus program and a firewall.
You don't state what these new
bunch of programs in the bar at the bottom that weren't there before
are...just place your cursor over each one and you should get the name of each. Please post them here.
You are running a large number of unnecessary items related to your Creative Soundblaster Live! Soundcard.

I would like you to first go to this link;
Download and install one of the free anti-virus programs listed there, for easy usage I would recommend AVG Free but the choice is yours. Download it, install it, update and enable it.
Do the same with one of the free firewalls noted there too.
Then go to the link that PP gave you and follow the steps given there.
Once you have completed all then run a new HJT scan and post back here with that new log and the names of all those new programs you see in the task bar. I don't see anything in your log which would indicate that Quicktime has brought in a lot of new items.
Judy