Do you have an SD card and a card reader?
EDIT: If you put the attached zip onto an SD card, put it in the EVO and boot into the bootloader (HBOOT), it should pick up the zip and install recovery for you.
Again I reiterate that there is no CD-making involved here. I think the way Windows handles .img files is confusing you.
Hi again Captain,
Thank you so much and to KingFatty as well for your guidance in this TWRP program and Root assistance. I finally got my Evo rooted! It took more reading and it was kind of a weird process that worked...I'd read others that did similar methods that failed so this was quite a blessing

To answer your question--I didn't have a sd card--I had 5 SD CARDS!!! lol! and 2 card readers besides. I also have the usb jig and that also has a 32 gig drive that you can transfer files via usb device. Anyways--- Here's what I did if anyone else wants to know (who may be a noob like me!)
1. Windows 7 (64bit) running Windroid Universal toolkit to unlock bootloader and get code--then it installed a version of TWRP which didn't finish installing recovery or Su/Root.
2. Downloaded your special Twrp recovery for jewel version for the Evo to my PC-(Thank U again Cap!!). I tried to run fastboot manually (from phone's Bootloader menu) so I could use my sd card for the transfer but it would not move the menu options to allow the fastboot to start-so I hit reboot to recovery. I had this happen one other time. Not sure why so this is where I tried it a weird way
3. After the Evo rebooted, I plugged it into my PC/usb port 2.0 and set the phone's usb debugging on. Disabled PC antivirus or any other programs and removed any usb devices.
4. Opened/ran the Windroid un.TK program. It found my device online and the drivers for my evo were recognized (Finally!!) and I clicked on TWRP recovery...which booted the phone then into TWRP menu. The windroid said 'fastboot' and stayed open on fb while I ran TWRP virtual buttons on my phone (not on the Windroid menu buttons).
4. I was able to mount my ext. sd card using TWRP menu on phone (new 16g card that was not allowing me to access from the phone's storage menu.)
5. I was then able to Flash install the new jewel recovery file on the phone. The phone then rebooted and a message came up to inform me that I didn't have Su installed and did I want TWRP to install it...of course! PHONE ROOTED now and su installed and rootchecker app says I'm rooted.
I'm not sure what really happened though because the program would not work last time so I think getting the phone in FB via Windroid sp that I could install the right twrp recovery was the key....I needed BOTH programs together--this way I didn't have to do any adb commands--the windroid did them for me but the windroid recovery alone does not work on my evo--but thanks to your remarkable work--it worked great!
Now---for the next dilemma tho---

I am still S-OFF and the more reading I do the more frustrated I have become....evidently I may have the "only 'software 3.17 /Radio 1.13/ HBoot 2.09 / Android v.4.1.1 'version' of Evo that says 'UNKNOWN' way to achieve S-Off. My phone specs fit all the same info below but I don't have a clue if opening the bootloader prior to RUU latest update may have wrecked it for me--since I was on and may still be on--official firmware when I did that?
Here's a DUMB noob question (sorry) How do I know which Rom I have or if I can use RR?
OTA Firmware 3.17.651.4 2.09.0000 1.13.11.0830 4.1.1 Jelly Bean October 2, 2013 'unknown' way
RUU 3.17.651.4 2.09.0000 1.13.11.0830 4.1.1 Jelly Bean October 02,2013 use 'Rumrunner'
After installing the jewel file - my phone booted normal and looked like nothing had changed--all files same except now rooted with Su. It still reads tampered/S-on (I did not do any wipe or Fact. reset while in windroid/Twrp program during rooting--I was too nervous to do that in case I would receive a automatic HTC update and then it may relock my bootloader for good..I read that can happen running official OS?? True?
I really hope to put a ROM on (one of your's) but while reading the thread it appeared to me that I would need S-Off to load any descent ROM's without bloatware and to customize. I don't need any of the Sprint whoha bloatware~that's a lot of why I wanted root. I prefer a smooth/fast/ clean type Rom that's easy to customize so I can run only a few important apps. This is not my main phone but it will get used a lot -I don't care about the Sprint stuff other than I'd like to wifi tether esp. and use google voice/dialer.
Do I need updated Radios? Here's the fact sheet--and I would really appreciate any help with S-off and a ROM suggestion PLEASE

I've read an entire Evo Guide about the Hboot and S-off and it really isn't making sense to me because there is too many variations of this phone so nothing seems streamline like it was with my Samsung. I never had to ask a question during any of the rooting/flashing roms. I used Odin and it went well. I've done 3 samsungs. This HTC is........grrrrr...lol
Thanks to anyone who can give me any help. Bless all you talented XDA Dev's!!!