I know the ups http address is
http://wwwapps.ups.c...st?HTMLVersion=
5.0&loc=en_US&Requester=UPSHome&tracknum=blahblahblahblah&AgreeToTerms
AndConditions=yes&ignore=&track.x=0&track.y=0
How would you go about adding that link with {$order_info.tracking_number} in the tracknum= part to make it a link - Im sure its easy but I cant figure it out

Such as:
<a href=/"http://wwwapps.ups.com/WebTracking/processInputRequest?HTMLVersion=5.0&tracknums_displayed=5&TypeOfInquiryNumber=T&loc=en_US&InquiryNumber1='$order_info.tracking_number'&InquiryNumber2=&InquiryNumber3=&InquiryNumber4=&InquiryNumber5=&AgreeToTermsAndConditions=yes&track.x=12&track.y=5>{$order_info.tracking_number}</a>