I have installed MediaWiki 1.5.6 on my machine and after importing the article dumps (en), it all seems to be fine, and I also have done the index rebuilding. But I have some problems incorporating the image files which is around 76G in total. I put the untarred files in the images directory (images/1/10,......). When I tried to do a sql execution of the file images.sql.gz through MySQL Query Browser (decompressed images.sql), it keeps telling me there's some syntax errors (it did added a few entries into the image table, but left the majority undone, which is weird even more). and when i try to do this through phpmyadmin, it just hangs with apache using full CPU. Is it might be the insert statement is too long (really long indeed) and therefore there's some memory overrun or setting incompatibility? If I manually edit the entries in image and imagelinks table, and place relevant image file in its md5 calculated directory, everything seems fine including the thumbnailing. So my guess is the problem is on the "sql" part. I have apache 2, php 4.4, mysql 4.0.18 Thanks!