php4.3+apache2+interbase 7 problem

hello, i am installing Apache 2.0.40 and Php 4.3.1 and Interbase 7 and for some reason i have problem when my code try to select from a database if the query is update or insert delete etc. all works well until i try a select. if i install interbase 6 or lower version then everything is ok. also i tryed running the interbase as: --with-interbase=shared and load it as extension but that failed too, also tryed to use an interbase.so of version 6 when the actual installed interbase is 7 and that worked but failes when doing transaction and blob stuff - which means - no good any of you guys out there encountered that kind of problem? any idea ? thanks ahead gmb.