new to this-MCSA-E LEARNING

lon101

hi

iam doing MCSA on e learning and find it hard i want to do some mock exams on this site but dont know which ones to do, the course title are:
Clinic 2263: Exam Preparation for the MCDST Certification
Course 2261: Supporting Users Running the Microsoft® Windows® XP Operating System (Retired CE)
Course 2261: Supporting Users Running the Microsoft® Windows® XP Operating System (Retired)
Course 2262: Supporting Users Running Applications on the Microsoft® Windows® XP Operating System
rse 2274: Managing a Microsoft® Windows Server™ 2003 Environment
Course 2277: Implementing, Managing, and Maintaining a Microsoft® Windows Server™ 2003 Network Infrastructure: Network Services
Course 2285: Installing, Configuring, and Administering Microsoft® Windows® XP Professional Service Pack 2

if some one can help so i know how to go about it and some tips the best way to pass.

thanks