[eluser]thunder uk[/eluser]
[quote author="emperius" date="1195074749"]unfortunately i cant use wget at crontab

[/quote]
Oh, ok.
How about a regular shell script?
Code:
#!/bin/sh
wget http://www.mysite.com/index.php/cron/index
Save as mycronscript.sh (or whatever!?

)
Chmod 755 ./mycronscript.sh
test the script (ie ./mycronscript.sh [ENTER] -> should print the results of the wget op on the command line)
and make a crontab entry to call ./mycronscript.sh as appropriate..
???