I got hold of the ebooks for GMAT paper tests found here:

http://www.mba.com/store/product-info.aspx?ProductID=5

But I don't know if they are same as the sets above.

Could someone who has purchased directly from the source confirm if they are the same paper tests?

These are the titles of the files:

Test Code 55 finalized proofed (35 pgs). 6 sections of verbal quant; 25 mins each THE FORMAT of the questions is different.
Test Code 52 finalized proofed (36 pgs).
Test Code 48 finalized proofed (35 pgs).
Test Code 42 finalized proofed (34 pgs).
Test Code 37 finalized proofed (35 pgs).
Test Code 31 finalized proofed (38 pgs).
Test Code 28 finalized proofed (37 pgs).
Test Code 25 finalized proofed (37 pgs).
Test Code 14 finalized proofed (38 pgs).

I am also uncertain about how to proceed. I have not taken the free tests that are CAT tests (free downloadable from mba) yet. I have solved the Sent. Correction and Critical Reasoning in the Official guide and Verbal Guide book 2nd edition. Feel really slowed down and want to get on with the real test.