On the iPhone 3g on the vodafone network how do i get sms delivery reports so i know when a person i text actually receives the text? there are some codes here:

http://www.iphonestalk.com/tip-how-to-get-sms-delivery-reports-on-an-iphone/

vodafone is not listed there.

and is the way to get guaranteed sms delivery without delays by using another sms gateway true as described?:

http://en.wikipedia.org/wiki/SMS

because alot of sms messages i send are not received by others on vodafone for like 10 minutes after they are sent. at least when i send an instant message on windows live messenger and it is delayed it says straight away something like 'message delivery delayed'.