So there is no operating system installed on the drive yet? I would just use the windows 7 install dvd to install windows. This time, delete exisiting partitions and don't partition it. When you see unallocated space for the whole drive just highlight and hit enter so that it installs windows on that partition.
First, I made Windows inactive on my 1 tb hdd thru the command prompt, which I'll probably make into an external drive in the future.
2nd, I took out the hdd and put in my 256 gb ssd. I went into bios and I changed my sata ports from IDE to AHCI, as ADATA recommended for the 256 ssd. I saved and rebooted and got the blue screen.
So 3rd, I went back into bios and made the sata ports IDE once again, hoping I could change them back to AHCI after I installed Windows.
4th, I installed Windows XP Pro on the drive, cuz I have a full edition of that, but only an upgrade edition of Win 7. With Win XP, it only showed 129 gb of free space. I guess I hoped the rest of the space would show up after I changed the sata ports from IDE to AHCI. I have no clue what that change does to the drive, hence my ignorance. And then I upgraded to Win 7.
5th, after Win 7 was installed and activated, I went into My Computer, hoping to see ~200 gb of free space. I read that after a format, 93% of a drive is usable and I should still leave 20% free on a ssd. But, it only showed what was remaining of the 129 gb after the Win 7 install.
6th, I went into Disk Management, and like I said, it showed that "missing" space as unallocated space. But I didn't know what that meant (I'm a n00b

)
So last, I made this Win 7 on the ssd inactive again and re-formatted the drive.
*This was a brand new drive, so there were no existing partitions on the drive, unless I accidentally made one before installing Windows.

So, I just install Windows since it's already formatted (yet it says only 129 gb are available)?
Sorry for all the confusion. And should I keep trying to change the sata port(s) setting to AHCI before Windows installation until I do not get a blue screen?