Hi there everyone, this is my second post, and I have some very "newbie" questions about my MacBookPro (1.8, 1.5 gigs) that I just bought. Having been a windows user for pretty much my whole computer life, I'm finding Mac OS a bit confusing. Sometimes I feel like it's too controlling, or it's trying to do too much for me. Anyways, I have a few simple questions.
How do I uninstall a program? I've just been finding it in the applications folder, and clicking "send to trash". However, I'm not entirely sure this is doing the trick, and I haven't been able to find any "uninstall program" window like you find in Windows control panel. I'm concerned that I don't want unused programs or extra files hanging around on my hard drive.
Also, on installing files in general, I find that everytime I download and install a file, I end up with these extra files on my desktop. One is the .dmg, which I understand is the compressed download. And then (with firefox for example) I am getting what is an icon that looks just like my Macintosh HD drive icon, only it says FireFox. When i reboot my computer it's no longer there, until I open firefox and then it returns.
What exactly is this icon? I assumed it was a program shortcut like in windows, but then as I said it disappears upon reboot. Plus why would I need that when it's on the dock? Also, whenever I download and install, it seems to move things around on my desktop, making it near impossible to keep my desktop in any sort of order.
Not only that, but twice now when I've rebooted, Firefox has disappeared and I have had to reinstall it completely. Then after it's reinstalled it still has my favorites... strange indeed.
I know these are newbie questions, but if I could get answers to these it would go a long way towards helping me understand this whole MacOSX thing. Thanks!

How do I uninstall a program? I've just been finding it in the applications folder, and clicking "send to trash". However, I'm not entirely sure this is doing the trick, and I haven't been able to find any "uninstall program" window like you find in Windows control panel. I'm concerned that I don't want unused programs or extra files hanging around on my hard drive.
Also, on installing files in general, I find that everytime I download and install a file, I end up with these extra files on my desktop. One is the .dmg, which I understand is the compressed download. And then (with firefox for example) I am getting what is an icon that looks just like my Macintosh HD drive icon, only it says FireFox. When i reboot my computer it's no longer there, until I open firefox and then it returns.
What exactly is this icon? I assumed it was a program shortcut like in windows, but then as I said it disappears upon reboot. Plus why would I need that when it's on the dock? Also, whenever I download and install, it seems to move things around on my desktop, making it near impossible to keep my desktop in any sort of order.
Not only that, but twice now when I've rebooted, Firefox has disappeared and I have had to reinstall it completely. Then after it's reinstalled it still has my favorites... strange indeed.
I know these are newbie questions, but if I could get answers to these it would go a long way towards helping me understand this whole MacOSX thing. Thanks!