.asmx file not viewable in Nokia Mobile Browser 4.0

hi,
my website is under apache server.i have developed webpages for mobile browser in wml and PHP.i am able to view all my wml and php pages in Nokia Mobile Browser 4.0. i tried to redirect my wml pages to the following link http://webservicex.net/SendSMS.asmx/SendSMSToIndia?MobileNumber=12345&FromEmailAddress=c@s.net&Message=hato send sms from mobile browser,but it is giving error as cannot load error 500.i also tried the same above redirection in php also it is giving same error.when i tried the same above in openwave mobile browser,it is working fine and sms is send successfully and xml format is returned to browser.is there any changes to be done in htaccess for accessing .asmx.i also tried with post and get method in nokia mobile browser,it wont work.i am using nokia mobile browser in windows 2000.my project is to send sms from wml in mobile browser.is it possible to view .asmx file in Nokia mobile browser?
please help me to come out of this problem.