Messed up installing XP on 2nd HD

Hello all new member here. I've posted this elsewhere but was pointed out that here might be a better place to ask about this problem. The majority of this post is just copy+paste.

Ok I'll start from the beginning, bearing in mind I'm a complete noob at this.

Yesterday I formatted and installed a second HD which went ok, it showed up in explorer np when I checked to make sure it showed up. Win7 was on C naturally, second hd was E. My intention was to install XP Home on it for older games and applications.

At the start of installing XP it asked me where I would like to install it, I choose E: XP Volume which is what I named it so I could pick it out and there could be no mistake. I didn't think much of it at the time, but next to my original HD with Win7 on it there was a selectable field, something called system reserved or something like that. I shrugged and went further down and selected E: XP Volume.

Installation went fine. But the problem is this, I now cannot boot up my original Win7 HD. Weirdly in XP it says that C is system reserved, E is the Xp HD and for reasons only known to God, my Win7 HD is now on I. All the stuff which was on it is still there, as I thought I made a mistake with choosing the location for installation.

If I take out the SATA wire from the motherboard from the XP HD I still cannot boot up my Win7 HD, it says there's an error with the boot path.

I don't understand where that system reserved thing came from, it's only 99mb in size and looks and acts like a HD in explorer.

Does anyone have any advice on this? Thanks in advance.

Thankyou for the advice. It's a new computer I've done that on (Using an old one for the net other stuff for now) so I haven't gotten around to making a recovery disk, but I can still do the repair install with the Win7 install disk?

Also sorry to be a pain, but from where can I download BCDedit? Thanks again.

Edit: Another question, theoretical, I may or may not do this just curious. I did this with both HDs plugged in at the same time, so if I reformat both HDs and install XP on one drive without the other HD plugged in and then install Win7 on the other after unplugging the XP HD, will it still throw up problems?