Firstly, I don't recognise Inspiron model 1500. The only manuals I have are 1501/1520/Vostro 1500/Insp. 1525/1526/1318/1410/1210/1545/and all the new Studios and Vostros.
I don't know what kind of warranty you have with Dell, if any. If as you say you are having a new hard drive installed, I am wondering if it's part of your warranty agreement, i.e. installed by a Dell engineer. If it is then normally OS and Drivers installation is part of the deal. Well it is here in the UK anyway.
In any case, it is an easy procedure. As long as Dell supplied the various discs with your portable.
Once the HDD is installed, boot the system, click F2 to enter setup and set the boot order to CD /DVD first. Or boot the system and click F12 and choose CD drive.
If it is a Media Direct system, then the first disc to use is Media Direct.
Insert Media Direct CD and boot from that. Follow instructions and it will tell you to change disc to OS CD. Do what it says. Now OS CD will install Windows. Sit back and relax...it's quite boring watching the status bar. You may have to do some typing or mouse work occasionally. e.g. name, time-zone, etc.
Once done, you will either get a message to re-insert Media Direct (if applicable) or you'll have a default blank desktop.
Insert Resources CD/DVD. Let it autoplay and allow install. The next screen (eventually) will either show you what drivers have been detected, or you may have to click on left side to choose OS and then drivers.
There is a specific order in installing drivers. Check this out on your local Dell website. Just go to Downloads and enter the Service Tag...Look for download order. Print it out and then when you click on your CD player (with the resource disc in place) you can see which drivers are required by the check mark. (You may find some are duplicated, go for the latest version)
Hope that helps