I'll try and explain things as best as I can.
I have been having so many problems over the years with my computer. Seems to be getting worse especially over the past few months or so.
It is a DELL Computer Dimension 8200
Have hired several repairmen over the years, and they seem to cause new problems all the time.
Problems started when I had to download AIM for an online computer class I had just registered for. Something called an MBKWBar Tool bar came through with it and installed itself in Internet Explorer and kept FLOODING me with pop up ads and of course would crash with all the pop ups. So, that is the first time we heard of SPYWARE, ad ware, all that stuff. We had heard of viruses, but not the other stuff. Had Norton Anti virus when I got infected with the tool bar.
Oh dear, now while on my mom's computer something is
COMING up and now my mom is mad at me. Thinks I've got her computer hacked. It says Spyware Protect 2009 alert.
Infiltration Alert-
Your computer is being attacked by an internet virus. It COULD be a password stealing attack, a trojan- dropper or similar.
Details:
Attack from: 153.74.175.9, port 22223
Attacked Port: 57897
Threat: BankerFox.A
Do You want to block this attack? yes or no
We don't know whether to put yes or no because the repairmen warned us that when hitting yes or no can cause more stuff to come through too.

I also keep getting parsing errors, and now learning that may have something to do with CSS, and I have no idea anything or how to fix this type of stuff. Getting the same problems on both mine and mom's computer.
Oh dear, it's happening again on my mom's computer.
Spyware Protect 2009 alert.
Saying it again and says
Details
Attack from: 148.3.173.122, port 49786
Attacked port: 32816
Threat: Win32/Nuquel.E
Do you want to block this attack?

If I click yes, it takes me somewhere and then asks for a credit card number. What do I do?