Zencart v. 1.3.5
Database: MySQL 4.0.27-standard-log
PHP Version: 4.4.4
Mods:
column layout Grid 1.3.5
Back up MYSQL Admin
1.3.5 xss patch2

I have tried to install cross sell and also cross sell advanced. When I try to upload products xsell_sql into Admin I get this error:

1064 You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'true','false'), ', now())' at line 1
in:
[INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) VALUES ('Cross-Sell - Display prices?', 'XSELL_DISPLAY_PRICE', 'false', 'Cross-Sell -- Do you want to display the product prices too?
Default: false', 18, 72, 'zen_cfg_select_option(array('true','false'), ', now());]
If you were entering information, press the BACK button in your browser and re-check the information you had entered to be sure you left no blank fields.

I have checked the forum and I didn't find a solution to this problem.

'zen_cfg_select_option(array(\'true\',\'false\'), ', now());
I wonder if the escapes in the 'true' 'false' above are the problem, but I know the xsell mod has worked successfully for many others.

Thanks for any help.