Install stock contacts and dialer in Athena?

[Dark Wizard Matoya]

Skyraider Athena is one of my favorite ROM's, the look and feel of AOSP Android but it's build on Sense so I not only get to keep the HTC camera but I also don't get that weird bug where "display" eats up almost all of my battery usage and kills my battery life that I get with every AOSP ROM I've ever tried. The thing is that Athena still retains the Sense dialer and contact app and includes the keyboard from gingerbread, which makes for an odd combination. I hunted down and downloaded the .apk filed for the stock Froyo keyboard, dialer and contacts app and would like to install them but I can't seem to figure out how to do so. I've used both Astro File Manager and Root Explorer and every time I get a message saying that the installation failed. I tried deleting or renaming the Sense dialer and contacts apps and installing stock but the stock apps still won't install and I just end up with a lot of force closes. I also found the stock Froyo email.apk, but I didn't try to install it because I would probably just get the same errors I did with the contacts and dialer. Is there any way for me to replace the Sense email, dialer and contacts apps with the stock apps?