Ironside....The same thing happened to me (although not the loader). What you have to do is to slave your drive containing the 140GB of data which amounts to a few screws and changing the jumper settings to the slave position and reinstalling the drive.
Go by the jumper settings on the case of the drive itself as opposed to anything in a book or manual.
Now boot your computer up and when you see the blue screen hit the F8 key a few times (if you miss it just boot again). This will bring you to a screen giving you start options, you select to start in "SAFE MODE" . When your login comes up you will want to log in as "ADMINISTRATOR" now we go to work!
Your folders will appear as "Empty" when you mouse over but they are not. You need to right click the folder and then click "properties" this will bring up a panel with several tabs, click the one entitled "security" You will notice a group of option boxes the first one says "full control" it should be empty and probably grayed out so you cannot click a check in it. At this point you click the button marked "ADD" and at the next panel in the empty block you type the word "Administrator" then click OK now if the box marked "full control is not grayed out click inside it. This populates all permission blocks below it. You may have to click out of the panel completely and right click "properties" again then "security" to make that "full control" box available (not grayed out)! Now the first thing crossing you mind is "damn do I have to do this for 2000 folders? The answer is "no" since you may highlight groups of folders and click through the same method I mentioned. You can do this with individual files also however if files or folders are not of the same type it will not give you the "security" tab when you click properties. Do not worry just figure out which files or folders are not of the same type or if you done know just reduce the number you have selected until you do get the "security" tab when you right click "properties"
If you have problems my email is email@example.com
and I did enable Private Msg although I just registered and have never used it. Above all dont give up and format your drive as some have done, that data is there and you can "reown" it, I salvaged
a huge GB volume just a short time ago !
Good Luck !