Samsung :: Impression - MMS Setting On Tmobile

Perhaps I'm just not using the right search keywords, but all the instructions I find aren't working. Mostly because my phone doesn't seem to have the same lines that everyone else is listing.

For example, I typically see this -
Profile1 Info
1. Profile Name: T-Mobile GPRS
2. GPRS Setting:
+1. Gateway:
+++1. IP address: 216.155.165.50
+++2. IP port: 9201
+2. APN: wap.voicestream.com
+3. Login ID: anonymous
+4. Password:
+5. APN: wap.voicestream.com
3. Homepage URL: http://wap.myvoicestream.com/

For MMS, I have these from my E635 as well.
MMS Settings
1. Profile Name: T-Mobile USA MMS
2. Server URL: http://216.155.174.84/servlets/mms
3. GSM Setting: (leave blank as mine was)
4. GPRS Setting:
+1. Gateway:
+++1. IP address: 216.155.165.50
+++2. IP port: 9201
+2. APN: wap.voicestream.com
5. Bearer: GPRS only

Then, trying to follow another's step-by-step instructions, I'm still having trouble following along. Here's my step-by-step to the point that I get lost. Open Menu, tap Settings, tap Messaging, scroll down to Messaging Settings, tap Multimedia Message, tap MMS Profiles... and this is where it gets confusing for me. Whether I try to edit one of the preset profiles, or add my own, these are the lines I'm offered to work with:
editing the MEdia Net profile -
Set Name
Access Name
Auth Type
User ID
Password (user ID and PW aren't able to be edited in this profile)
Protocol (either HTTP or WAP)
Home URL
Proxy Address
Linger Time (sec.)
Advanced Settings

And in the Adv Settings, I have -
Static IP (to check, or unckeck, a box)
Local Phone IP (not highlighted, ie, able to be edited)
Static DNS (to check, or uncheck, a box)
Server 1
Server 2 (neither server lines are able to be edited in this profile)
Traffic Class (down arrow sellection, with Subscribed as the only selection available)

And in adding a new profile, everything that was previously unable to be edited, can now be: User ID, Password, Static IP #, and Servers 1 & 2 #'s. I've tried every combination of URLs that I could find:
Home URL - http://216.155.174.84/servelts/mms
Homepage URL - Homepage URL: http://wap.myvoicestream.com

Along with every combination of IP #s that I could find:
216.155.165.50
10.168.200.50

And I'm striking out everywhere. I'm hoping someone understands the babble I've typed in here, and can make sense enough of this to be able to help me. I don't care about getting on the internet with the phone (no data plan), but I just want to be able to send/receive pics and videos.