Not properly importing data from a gallery 1.3 database

I'm in the process of trying to migrate a couple of albums from an old 1.3 (yes that old!) installation into a new 2.1 on another server.

I'm finding that it can do the preparation, without finding a user (the only user on the old site was the admin user), but when I finally click the "Import" button, I get a screen saying "Importing Users" with the bar a full orange, but no continue and it stops right there.
There is no continue link, and the top right hand corner reads "Memory used: 6108944, total: 16M"

I'm happy not to import the old user base, but I would like to import the files with their comments into the new installations. I would feel reasonably confident simply commenting out the Import Users code, but I haven't had time to investigate today.

Any thoughts?

Thanks,

Thomas

Site information:

Gallery version = 2.1.1 core 1.1.0.1
PHP version = 4.3.10-16 apache
Webserver = Apache/1.3.33 (Debian GNU/Linux) PHP/4.3.10-16
Database = mysql 4.1.11-Debian_4sarge2-log, lock.system=flock
Toolkits = ArchiveUpload, Exif, NetPBM
Acceleration = none, none
Operating system = Linux emily.wibble.to 2.4.26-bytemark-uml-20040706-1 #1 Tue Jul 6 09:37:31 BST 2004 i686
Default theme = matrix
Locale = en_GB
Browser = Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3

G2 URL (optional):
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G1 character set:
PHP memory limit:
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PHP version (e.g. 4.3.11):
PHPInfo Link (see FAQ):
Webserver (e.g. Apache 1.3.33):
Database (e.g. MySql 4.0.11):
Activated toolkits (e.g. NetPbm, GD):
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Browser (e.g. Firefox 1.0):