I am such a dumbass ! Sorry, I was posting at 3:30 am. What I meant instead of "hard reset" was "soft reset" ...
Later edit: Well never mind that, apparently a soft reset only power-cycles the phone. I manually went through each and every single folder and the remains of this dreaded dictionary were nowhere to be found.
Any ideas ?

Hey guys.
Yet again, I need your help. I've spent the past hour googling this issue, but I cannot seem to find an answer. So I tried installing this dictionary-thesaurus app on my phone. About half way through the program's installer it tells me my phone has no more room left. It never asked me for a location to install it ... so anyway, now my "Device Storage" is at 100% with 8.18MB. How in the world do I clear this ? I have absolutely no text messages, IE cache or anything. I've been trying to find the temp files with the file explorer, but the folder is empty.
Btw how do I do a hard reset ? All the guides say "hold blue key and power for a few seconds". But that just shuts off my phone. And if it's off, it asks me if I want to do a hard reset.
Any help would be greatly appreciated.
Thank you.

Nope. And I've actually just tried a friend's prepaid card in it, and it worked. Sadly it must be my SIM.

Updated the first post with relevant info.

Hey guys. Just picked up a sorta-broken mpx 200 yesterday, and now I'm trying to see whether I can fix it or not. The guy sold it to me "as is" for $20 CAD, and I couldn't pass up such an offer
I get home, charge the phone, and to my surprise it works ... sorta. I can use whatever functions it has, except that for some reason I'm not getting any reception anywhere I go. Yes, my provider works on 1900 as well. I do a hard reset, and nothing comes out of it.
Thus I decide to try different flash versions. I try maybe 3-4, and still nothing. Maybe the phone is locked ? From what I've read if it's sim-locked you can still use the PIM apps and such, so I go ahead and follow this guide to unlock it: http://www.rasoul.com/mpx200/
All goes well (aka my phone isn't bricked), but still no reception. What in the world is going on ? If plane mode was on, flashing or hard-resetting it should fix it. And now, to top it all off, for some reason I can't flash the phone any more, as MMUW tells me the upgrade failed.
Like any other rom, it should have a life of about 1000 rewrites or so. What in the world is going on ?
Thanks in advance.

Later edit:
I realized that indeed the phone has a problem with my SIM. Very strange, considering that I've used my sim in about 5+ phones before, and they all worked flawlessly ... Whenever I put it in, it starts acting up - i get no service (and the antenna has the forbidden crossed-out O next to it), programs quit by themselves, menus are slower than usual, etc. I have two de-activated sims and when put in, the phone behaves properly, and also I get bars of service. I have no clue what to do ...

Hey guys.
Sorry for bringing this thread back from the dead, but I seem to be experiencing the same thing with my 200. Apparently it's stuck on Airplane Mode or something, as I can't seem to be getting any service, no matter what. I'm running WM2003, and even after accessing "Flight Mode" from the quick menu, nothing happened.
Any known way to fix this ?
Thanks in advance.