Yes there are several/many but sorry I can't remember them now.
To be honest not hard to look at your components and tell off the bat. Further run a few benches and even more so. All those apps do is analyze what we all can see.
What do you wanna know?
You do not have a bottle neck on your listed computer. That said if you increased your GPU it would help in gaming. Increase RAM might help in general but not a major bottleneck with XP Pro.
Of course a faster CPU would be nice but I don't see this as overly constricting.
Sure a i7, 5870 and 8GB of RAM would be faster. But that is not a bottleneck.
Your HDD's are crap. I don't even need to know 5400 or 7200 the areal density is crap. Unless that 37GB is a Raptor?