Sql 2005 Upgrade Sql Standard 2005 To 2005 Standard Sp2 (using A Command Prompt)

First of all I am planning to install sql 2005 standard and sql standard sp2
on vista ultimate professional using vs 2008 pro
I have some questions about installing sql 2005 what is the best way to install sql 2005 on
vista My article I got this from ms 403393 (upgrading sql standard 2005 to sql standard 2005sp2)
1 sql standard .(shortcut right click from cd/dvd not possible) I have heard command prompt start menu, click cmd
type run D: cd/dvd exe
From a wizard (sql sp2)

2. sql standard sp2
a. upgrade using a wizard
b. open a command prompt (not sure if right click is best option)
install dvd media example dqlserver2005sp2-kb921896-exe SKUUPGRADE=1(is run as administrator option on media)
do I type run or what do I type ?
c. go to system configuration page(where is this) you should see a single warnining you need to install
sp2, the edition should say success if it does not please reapply
d. on the registration page please enter your registeration number
e. on the comments to install please enter database services, reporting services
workstation components, books online and development tools( I wish to install
all components)

f. on the instance page click default instance(default install)
g. finish rest of wizard
h. apply sql sp2

I also have of seperate question of upgrading sql from vista using a Configuring local admin account
account (configuring administration from a wizard-will this notify
me by default) I do not want my administrative priviledges elevated.
I will be using default configurations for my installations.........
I often wish there would a nice picture examples of doing this
Please help