There are several choices of Windows XP backup software available, however, most of them are extremely over priced and over specified.
It is not uncommon to pay $50 per month for backup software to store your files.
The truth is, you can get the exact same backup capacity for significantly less, as much as 80% less if you throw out some of the bells and whistles that so many companies will try to up sell to you.
The truth is, you do not need fancy features in your windows backup software.
The whole purpose is to accurately, and safely backup your hard drive on a regular basis so you can retrieve images, spreadsheets, files, and anything else in case of crash.
You do not need anything other than the backup software itself.
There are some great bargains that are very reliable available.
Commonly, you can find software that will:

1. Provide secure, offsite backup storage that will hold 100,000 normal size files
2. Automatically update the backup file on a daily, even hourly, basis
3. Provide access back to your stored files from any internet connection worldwide
4. Provide a point and click, drag and drop simple interface to make the storage process as streamline as possible

Above those four features, you really do not need anything else.
You can feel secure that your data will be stored, fully encrypted, off site and offline, ready to be called into action when you need it most.
There is no need to over spend for xp backup software, you can get everything you need for quite reasonable rates.