For A1 you need to copy:
RunBrown2Brill, RunTagger, RunGatherStats, and splitre 
(the last one is called by RunTagger).

Make sure you create the directories you use as arguments.

How to run the scripts:

RunBrown2Brill brown_corpus_directory myb2bfiles_directory

RunTagger myb2bfiles_directory mytaggedfiles_directory

RunGatherStats mytaggedfiles_directory BrownStats.data

These scripts call your programs:
   Brown2Brill A01 >A01.b2b  
   GatherStats A01.tag >output_file


Example of run on cdf:

RunBrown2Brill /u/cs401/Brown/corpus corpus.sent
145.48u 65.61s 5:26.39 64.6%

RunTagger corpus.sent corpus.tag
476.28u 10.94s 10:18.11 78.8%

RunGatherStats corpus.tag BrownStats.data
264.09u 15.78s 6:04.17 76.8%