windows xp file recovery

I am running windows xp professional ,which crashed the other day.As I could not find my installation disc I borrowed a copy of xp home to re-boot my system.However instead of going through recovery I loaded xp home over the top(long day tired etc!).As a result I seem to have lost most of my desktop files and others digital photos, photoshop,antivirus,internet dialers etc.Whilst I have been able to find them in various formats I cannot seem to install them back.Could I achive this when I reinstall xp pro or do I have to buy some recovery software.Any ideas.Thanks

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