Preparing my laptop

I have a del latitude 620 laptop it was a Dell XP professional install when I bought it the guy. It put on windows 7 just a quick install the hard drive was outdated the memory card or RAM stick was only 0.5 Mb memory I am trying to see if when I put a new RAM which I have got a ram of 500 gb that I am buying for my computer and I've just bought a two GB RAM memory card and I was wondering if somebody can tell me which would be the best I want to install home Premium windows 7 onto my laptop it is a older model 2000 model I'll post a picture with it I want I want to know if a 64 bit or a 32 bit which one would be better for my laptop

I think it worked just fine as before the hard drive decided to crash hard drive was an 80 gb hard drive I bought it with a low grade memory card already and the ground as it was outdated. I already put a driver updater I told you try to repair it and I see the updates on it but then hard drive to crash hard drive was the original from when it was actually XP Professional

I apologize for how it is everything said the hard drive was outdated the driver was kept saying there was so much out date on everything that was in that guess whatever the drive was I told you I don't have a very good when it comes to computers but I do that's why I'm asking to make sure I don't put something in my computer that's going to make it crash

While you are waiting for expert responses, you might want to take a look at some of the Tutorials in another section on this forum

https://www.sevenforums.com/tutorials/

or there might be some threads of interest in a couple of the other sections of this forum: there are sections devoted to Hardware and Devices, to Drivers, and to General Discussion (links below)

https://www.sevenforums.com/hardware-devices/
https://www.sevenforums.com/drivers/
https://www.sevenforums.com/general-discussion/

As someone else who does not know a lot about computers, I have found these sections extremely helpful.

which disk are you talking about are you talking about the hard drive as if that's what you're talking about then yeah but no its not a SATA. Hitachi

the hard drive that I had in this is it has SATA a capability

so what does that mean can you explain it to me