We just installed CSVExport 1.01 on Omeka 2.5.1, OS X Darwin 14.5.0 x86_64, MySQL 5.6.14 and PHP 5.5.38 (apache2handler)
We have 14,000+ items and we select all items and export to csv. The resulting file only contains the records displayed on the page not all the selected records (200)
Thanks