Total IIS Noob Needing Simple URL Rewrite (Please Help)

Hello all,

I am a systems admin working with SCCM and have setup my application catalog which runs IIS. I have the following site: 

https://companyserver.company.com/cmapplicationcatalog 

I would like to get that down to something much more simple like https://Companysoftware.com or https://companysoftware/getsoftware

Can anyone help me? I have followed some instructions here:

http://blogs.technet.com/b/mspfe/archive/2013/11/27/how-to-create-a-url-alias-using-iis-url-rewrite.aspx

Unfortunately, I can't redirect all traffic as there are other sites in IIS that config manager relies on to communicate so its only for the /cmapplicationcatalog site. 

Again, total noob so i may need step by step if possible.

Also, this site relies on an HTTPS cert in order to gain access so I'm not sure how that will play into this. 

Thanks in advance.