Hello Mitchell,
Welcome to Seven Forums.
If you fill in your system specs under User CP, that would help. You can see what kind of info is useful by looking at mine and others specs, lower left of each post.
Although you can install all the ram, a 32 bit system can only address 4 GB max. Some of this address space is used by other hardware so effectively you have only 3 or so GB useable depending on the hardware you have in your system. In order to use more than 4 GB of ram you need to have a 64 bit OS. Most newer systems are 64 bit compatible. Only thing that is generally ever a problem is finding 64 bit drivers for some hardware. If you can find 64 bit drivers for all your hardware, I would suggest you download the 64 bit version of W7 and install that. You won't be able to upgrade, it will have to be a clean install.
Hope this helps. If you need more help with this, we'll be around.
Gary