Trojan.Win32.LinkReplacer

I am going nuts because I keep having this pop up telling that my computer was hijacked and I though that only happened to vehicles, or moving objects not a stationary object like a computer.
Please help.
I have searched "Trojan.Win32.LinkReplacer" on google and I get some IE spyware downloader thing, I cannot shake it and every site i click on sends me to a porn site or a "Buy this" type site.
My e-mail is –Edited Email address– feel free to send an e-mail to it
I am on Yahoo IM almost 24/7 – Edited Yahoo IM – is my S/N
Please help I am afraid of losing my pictures of my 6 month old son if this continues.
Thank you, Rachel

Hello RaymeeJean,

Please download the self-extracting version of HijackThis from here:

HijackThis Installer Download

Save HJTInstall.exe to your desktop.

Double-click the file then click the Install button.

The file will be extracted to C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
A shortcut for future use will also be created on your desktop and the Intro Frame of HijackThis will open.

Click Do a system scan and save a log file. Copy the entire contents of that log and post it here by clicking the Add Reply button.