Tracking OVKEY, OVRAW & OVMTC in customised tag

Manually inserting tracking into own url!

[Pimp of Clicks]

Currently Overture/Yahoo allows keyword tracking with the "Easy Track" function where they append keyword information to your URL so ends up like this:

[yourwebsite.com...]

I´m an affiliate and use a lot of deeplinking and MUST append my partners redirection page to end of my Overture Url so I am unable to use Easy Track in its standard configuration.

Is there any way to add this keyword tracking information to my own custom tracking tag, for example:

[trackingsite.com...]

In this example I would like the OVRAW, OVKEY & OVMTC replaced with there actual value aha la Google style{keyword}!

I hope someone has experience from this - thanks!