If you'd like to run Adobe Acrobat 7.0.7 in Crossover Office 5 you should follow these steps:
1) Run CX Office Setup
2) Select any bottle and hit Install Software
3) Choose "Install Unsupported Software"
4) Choose Other *.exe file where this file should be ie6setup.exe (I hope you have Internet Explore SP1 installation sources)
5) In "Install info" create a new bottle as suggested using win2000 template
6) After all is done choose "Install more Windows software" then you should install attention(!) AdbeRdr707_en_US_distrib.exe file (you can find it here: http://ardownload.adobe.com/pub/adobe/reader/win/7x/7.0.7/enu/AdbeRdr707_en_US_distrib.exe or on ftp.adobe.com) and choose the bottle from step 5.
Enjoy!