I'm reading this at the moment im searching tho my windows files and can't find the ones it says you need to write on the floppy anyone know where they would be kept??

How to use System files to create a boot disk to guard against being unable to start Windows XP
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Article ID   :   314079
Last Review   :   June 23, 2005
Revision   :   2.2
This article was previously published under Q314079
For a Microsoft Windows 2000 version of this article, see 101668 (http://support.microsoft.com/kb/101668/).
INTRODUCTION
If your computer uses an Intel x86-based processor, and the startup record for the active partition or files that you must have to start Windows become corrupted, you may not be able to start your computer. This article describes how to create a startup disk. With a startup disk, you can start your computer if the startup record becomes corrupted.
MORE INFORMATION
Create a Windows startup disk when you first install Windows on the computer. This disk is different from an MS-DOS startup disk. Unlike MS-DOS, the whole Windows operating system cannot fit on one floppy disk. A Windows startup disk contains only the files that you must have to start the operating system with the remainder of the Windows system files installed on the hard disk drive. To create the startup disk, follow these steps:
1.   Insert a blank floppy disk in drive A, and then format the disk by using Windows XP.
2.   From the root folder of the system partition of your hard disk drive (for example, C:\-), copy the following files to the floppy disk:
Boot.ini
NTLDR
Ntdetect.com
You may have to remove the hidden, system, and read-only attributes from the files.
3.   Restore the hidden, system, and read-only attributes to the files on your hard disk if you removed these attributes.
4.   If the Bootsect.dos file or the Ntbootdd.sys file resides in the system partition, repeat steps 2 through 4 to copy these files to the boot disk.
If you format a floppy disk in Windows XP, the startup record points to the NTLDR file. When NTLDR runs, it loads the available operating system selections from the Boot.ini file. If you select Windows, NTLDR runs Ntdetect.com, and then passes control to Osloader.exe. If you select MS-DOS or OS/2, NTLDR loads Bootsect.dos.

Root folder means the files will be at
C:\Boot.ini  etc.

 very doubtful

Have you tried a repair install rather than full install.   Details here http://michaelstevenstech.com/XPrepairinstall.htm

what would you recommand i do i've got a legit windows that came with my advent computers, the only problem is that the disk that i need to boot from is slice'd to hell and wont even run, and i don't wonna spend my money on  a new windows disk just to fix this small problem

You can buy Windows XP, you can't download it.

If you can borrow the same version CD, you may be able to reinstall using the licence key you already have.

You could also try contacting Advent and asking for a replacement CD .......

As to installing on removeable media, that is not a good idea. Always install onto the hard drive of the PC.