I was reminded of these exams expiring after putting them off for over 4 years in the middle of studying for the 70-282 to get my business in the SBSC which was late January. Since we do mostly small business networks, I don't use a lot of the topics covered in these tests very regularly so I'm finding prepping for these tests to be more work than I anticipated. I tried the 70-292 a little over a week ago after not having properly prepared and didn't pass

I'm now working on the one objective that killed me - DNS, as well as reading through some 870+ practice questions from ****.com.
I have three questions:
1. The tests retire at the end of the month, but it appears that Prometric.com will allow you to schedule these tests the full 8 weeks into the future that the website will allow you schedule an exam. Anyone know anything about that? Is March 31 the cutoff date for scheduling?
2. I'm taking the 292 on the 27th which leaves me no time for the 296 unless I can indeed schedule it for later in April or May. Does anyone know if you have the MSCA 2003 if you can simply take 3 additional tests to get the MCSE 2003? 3 is worse than 1 but better than 7.
3. Has anyone used ****.com practice tests before? Any input?
Thanks - I appreciate any insight!