Welcome to the site, lizagreece. I see you have now joined.
You already have EasyBCD, as suggested by Saltgrass. The BEta which I sent you is fully functional, as you have found.
As I warned you, you may have overwritten the XP boot files. These will not be recovered by Easybcd.
First, Open Windows Explorer, - Tools - Folder Options View.
Scroll down and enable (unhide) Proteceted operating system and Show hidden files.....etc.
Now look in your XP partition and see if you have the XP boot files in there. These will be
NtDetect; Boot.ini. and autoexec.bat, and possibly some others.
If you have these, then you may have allocated the wrong partition in Easy BCD
Open Easy BCD again, go to Add/Remove entries.
In type, select XP, if you have not already done so. In Drive, select D: Whilst there, name the entry something easy (Like Windows XP!)
If you have already, D. selected, then try it with C:, you may have a cross reference.
Should all fail!!
I have attached a set of the files you need, should all fail. I really doubt this will work, but place them in the folder where you have XP installed, and run through the Easybcd sequence again.
Fwiw. The entry from Windowsguy is not relevant to your problem.