TinyMCE and the ampersand encoding, it's breaking our URLs, any way to change that behavior?

Migrateduser

We are undergoing user testing on our 6.7.2 upgrade to 7.4.2 and have encounterd issues with our legacy content that used the previous Visual Format. Now with 7.4.2 the TinyMCE edidtor is used. Our problem is what TinyMCE changes in our content. The & that lies within a URL a user has typed in within a text box that has TinyMCE will have been changed to & , thus breaking our link. We have been through the FormsPublsiher Guide, and also seached the forums on the TinyMCE site. We are doing the instructed changes to the file custom_config.js. We have tried "encoding" set to XML as well as "entity_encoding" set to 'numeric', 'named', and 'raw' but still get the same results. Curious if anyone knows a setting in TinyMCE that will allow all characters to not be encoded?